16631415964 has 6 divisors (see below), whose sum is σ = 29104977944. Its totient is φ = 8315707980.

The previous prime is 16631415923. The next prime is 16631415967. The reversal of 16631415964 is 46951413661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16631415967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2078926992 + ... + 2078926999.

Almost surely, 2^16631415964 is an apocalyptic number.

It is an amenable number.

16631415964 is a deficient number, since it is larger than the sum of its proper divisors (12473561980).

16631415964 is a wasteful number, since it uses less digits than its factorization.

16631415964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157853995 (or 4157853993 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The spelling of 16631415964 in words is "sixteen billion, six hundred thirty-one million, four hundred fifteen thousand, nine hundred sixty-four".