15620677632 has 672 divisors, whose sum is σ = 57248755200. Its totient is φ = 4156489728.

The previous prime is 15620677627. The next prime is 15620677661. The reversal of 15620677632 is 23677602651.

15620677632 is a `hidden beast` number, since 1 + 5 + 6 + 2 + 0 + 6 + 7 + 7 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264757219 + ... + 264757277.

It is an arithmetic number, because the mean of its divisors is an integer number (85191600).

Almost surely, 2^15620677632 is an apocalyptic number.

15620677632 is a gapful number since it is divisible by the number (12) 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 15620677632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28624377600).

15620677632 is an abundant number, since it is smaller than the sum of its proper divisors (41628077568).

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

15620677632 is an frugal number, since it uses more digits than its factorization.

15620677632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 15620677632 in words is "fifteen billion, six hundred twenty million, six hundred seventy-seven thousand, six hundred thirty-two".