16005620418 has 32 divisors (see below), whose sum is σ = 32606841600. Its totient is φ = 5236234896.

The previous prime is 16005620381. The next prime is 16005620437. The reversal of 16005620418 is 81402650061.

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, 182605 + ... + 255647.

It is an arithmetic number, because the mean of its divisors is an integer number (1018963800).

Almost surely, 2^16005620418 is an apocalyptic number.

16005620418 is an abundant number, since it is smaller than the sum of its proper divisors (16601221182).

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

16005620418 is a wasteful number, since it uses less digits than its factorization.

16005620418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73726.

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 16005620418 in words is "sixteen billion, five million, six hundred twenty thousand, four hundred eighteen".