690506552736 has 3456 divisors, whose sum is σ = 3162194380800. Its totient is φ = 144850083840.

The previous prime is 690506552711. The next prime is 690506552741. The reversal of 690506552736 is 637255605096.

It is a happy number.

690506552736 is a `hidden beast` number, since 6 + 9 + 0 + 50 + 6 + 552 + 7 + 36 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 23810570770 + ... + 23810570798.

It is an arithmetic number, because the mean of its divisors is an integer number (914986800).

Almost surely, 2^690506552736 is an apocalyptic number.

690506552736 is a gapful number since it is divisible by the number (66) 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 690506552736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581097190400).

690506552736 is an abundant number, since it is smaller than the sum of its proper divisors (2471687828064).

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

690506552736 is a wasteful number, since it uses less digits than its factorization.

690506552736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 10206000, while the sum is 54.

The spelling of 690506552736 in words is "six hundred ninety billion, five hundred six million, five hundred fifty-two thousand, seven hundred thirty-six".