16425631564 has 12 divisors (see below), whose sum is σ = 28801332000. Its totient is φ = 8196679568.

The previous prime is 16425631559. The next prime is 16425631571. The reversal of 16425631564 is 46513652461.

It is a self number, because there is not a number n which added to its sum of digits gives 16425631564.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4031764 + ... + 4035835.

It is an arithmetic number, because the mean of its divisors is an integer number (2400111000).

Almost surely, 2^16425631564 is an apocalyptic number.

It is an amenable number.

16425631564 is a deficient number, since it is larger than the sum of its proper divisors (12375700436).

16425631564 is a wasteful number, since it uses less digits than its factorization.

16425631564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8068112 (or 8068110 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 16425631564 in words is "sixteen billion, four hundred twenty-five million, six hundred thirty-one thousand, five hundred sixty-four".