16625915040 has 576 divisors, whose sum is σ = 65341624320. Its totient is φ = 3471206400.

The previous prime is 16625915039. The next prime is 16625915081. The reversal of 16625915040 is 4051952661.

It is a self number, because there is not a number n which added to its sum of digits gives 16625915040.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61350105 + ... + 61350375.

It is an arithmetic number, because the mean of its divisors is an integer number (113440320).

Almost surely, 2^16625915040 is an apocalyptic number.

16625915040 is a gapful number since it is divisible by the number (10) 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 16625915040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32670812160).

16625915040 is an abundant number, since it is smaller than the sum of its proper divisors (48715709280).

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

16625915040 is a wasteful number, since it uses less digits than its factorization.

16625915040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 16625915040 in words is "sixteen billion, six hundred twenty-five million, nine hundred fifteen thousand, forty".