16506146504 has 16 divisors (see below), whose sum is σ = 30970375920. Its totient is φ = 8247379600.

The previous prime is 16506146497. The next prime is 16506146519. The reversal of 16506146504 is 40564160561.

It is a happy number.

It is a super-2 number, since 2×16506146504² (a number of 21 digits) contains 22 as substring.

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, 699374 + ... + 722589.

It is an arithmetic number, because the mean of its divisors is an integer number (1935648495).

Almost surely, 2^16506146504 is an apocalyptic number.

It is an amenable number.

16506146504 is a deficient number, since it is larger than the sum of its proper divisors (14464229416).

16506146504 is a wasteful number, since it uses less digits than its factorization.

16506146504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423420 (or 1423416 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 16506146504 in words is "sixteen billion, five hundred six million, one hundred forty-six thousand, five hundred four".