16205321372 has 12 divisors (see below), whose sum is σ = 28360811976. Its totient is φ = 8102232240.

The previous prime is 16205321323. The next prime is 16205321399. The reversal of 16205321372 is 27312350261.

It is a super-2 number, since 2×16205321372² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12779 + ... + 180482.

It is an arithmetic number, because the mean of its divisors is an integer number (2363400998).

Almost surely, 2^16205321372 is an apocalyptic number.

It is an amenable number.

16205321372 is a deficient number, since it is larger than the sum of its proper divisors (12155490604).

16205321372 is a wasteful number, since it uses less digits than its factorization.

16205321372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214228 (or 214226 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 16205321372 in words is "sixteen billion, two hundred five million, three hundred twenty-one thousand, three hundred seventy-two".