69640504080 has 320 divisors, whose sum is σ = 267615871488. Its totient is φ = 14615838720.

The previous prime is 69640504067. The next prime is 69640504081. The reversal of 69640504080 is 8040504696.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (69640504081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1141224 + ... + 1200696.

Almost surely, 2^69640504080 is an apocalyptic number.

69640504080 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 69640504080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133807935744).

69640504080 is an abundant number, since it is smaller than the sum of its proper divisors (197975367408).

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

69640504080 is a wasteful number, since it uses less digits than its factorization.

69640504080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59554 (or 59548 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 69640504080 in words is "sixty-nine billion, six hundred forty million, five hundred four thousand, eighty".