16309638572 has 6 divisors (see below), whose sum is σ = 28541867508. Its totient is φ = 8154819284.

The previous prime is 16309638557. The next prime is 16309638593. The reversal of 16309638572 is 27583690361.

It is a self number, because there is not a number n which added to its sum of digits gives 16309638572.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2038704818 + ... + 2038704825.

It is an arithmetic number, because the mean of its divisors is an integer number (4756977918).

Almost surely, 2^16309638572 is an apocalyptic number.

It is an amenable number.

16309638572 is a deficient number, since it is larger than the sum of its proper divisors (12232228936).

16309638572 is a wasteful number, since it uses less digits than its factorization.

16309638572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077409647 (or 4077409645 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 16309638572 in words is "sixteen billion, three hundred nine million, six hundred thirty-eight thousand, five hundred seventy-two".