69690694106880 has 2592 divisors, whose sum is σ = 318542932012032. Its totient is φ = 13640505753600.

The previous prime is 69690694106879. The next prime is 69690694106893. The reversal of 69690694106880 is 8860149609696.

69690694106880 is a `hidden beast` number, since 6 + 9 + 6 + 90 + 69 + 410 + 68 + 8 + 0 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 69690694106799 and 69690694106808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 108721831360 + ... + 108721832000.

It is an arithmetic number, because the mean of its divisors is an integer number (122894649696).

Almost surely, 2^{69690694106880} is an apocalyptic number.

69690694106880 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69690694106880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159271466006016).

69690694106880 is an abundant number, since it is smaller than the sum of its proper divisors (248852237905152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69690694106880 is a wasteful number, since it uses less digits than its factorization.

69690694106880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 241864704, while the sum is 72.

The spelling of 69690694106880 in words is "sixty-nine trillion, six hundred ninety billion, six hundred ninety-four million, one hundred six thousand, eight hundred eighty".