16326356556 has 48 divisors (see below), whose sum is σ = 40406002560. Its totient is φ = 5116325760.

The previous prime is 16326356507. The next prime is 16326356567. The reversal of 16326356556 is 65565362361.

It is a super-2 number, since 2×16326356556² (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 15 ways as a sum of consecutive naturals, for example, 243441 + ... + 303176.

It is an arithmetic number, because the mean of its divisors is an integer number (841791720).

Almost surely, 2^16326356556 is an apocalyptic number.

It is an amenable number.

16326356556 is an abundant number, since it is smaller than the sum of its proper divisors (24079646004).

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

16326356556 is a wasteful number, since it uses less digits than its factorization.

16326356556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546774 (or 546772 counting only the distinct ones).

The product of its digits is 2916000, while the sum is 48.

The spelling of 16326356556 in words is "sixteen billion, three hundred twenty-six million, three hundred fifty-six thousand, five hundred fifty-six".