166056011566496 has 48 divisors (see below), whose sum is σ = 337006696982760. Its totient is φ = 80483693184000.

The previous prime is 166056011566453. The next prime is 166056011566513. The reversal of 166056011566496 is 694665110650661.

It can be written as a sum of positive squares in 4 ways, for example, as 90881215850896 + 75174795715600 = 9533164^2 + 8670340^2 .

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, 260369255 + ... + 261006246.

Almost surely, 2^{166056011566496} is an apocalyptic number.

166056011566496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166056011566496 is an abundant number, since it is smaller than the sum of its proper divisors (170950685416264).

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

166056011566496 is a wasteful number, since it uses less digits than its factorization.

166056011566496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521375817 (or 521375809 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 62.

The spelling of 166056011566496 in words is "one hundred sixty-six trillion, fifty-six billion, eleven million, five hundred sixty-six thousand, four hundred ninety-six".