16125635650440 has 64 divisors (see below), whose sum is σ = 48382600743360. Its totient is φ = 4299663392000.

The previous prime is 16125635650429. The next prime is 16125635650463. The reversal of 16125635650440 is 4405653652161.

It is a happy number.

It is a super-2 number, since 2×16125635650440² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16125635650440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6883674 + ... + 8923913.

It is an arithmetic number, because the mean of its divisors is an integer number (755978136615).

Almost surely, 2^{16125635650440} is an apocalyptic number.

16125635650440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16125635650440 is an abundant number, since it is smaller than the sum of its proper divisors (32256965092920).

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

16125635650440 is a wasteful number, since it uses less digits than its factorization.

16125635650440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15816102 (or 15816098 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 48.

The spelling of 16125635650440 in words is "sixteen trillion, one hundred twenty-five billion, six hundred thirty-five million, six hundred fifty thousand, four hundred forty".