16640554002 has 16 divisors (see below), whose sum is σ = 33292873152. Its totient is φ = 5544890480.

The previous prime is 16640553973. The next prime is 16640554019. The reversal of 16640554002 is 20045504661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471774 + ... + 505817.

It is an arithmetic number, because the mean of its divisors is an integer number (2080804572).

Almost surely, 2^16640554002 is an apocalyptic number.

16640554002 is an abundant number, since it is smaller than the sum of its proper divisors (16652319150).

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

16640554002 is a wasteful number, since it uses less digits than its factorization.

16640554002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980433.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 16640554002 in words is "sixteen billion, six hundred forty million, five hundred fifty-four thousand, two".