166315061376 has 512 divisors, whose sum is σ = 515522361600. Its totient is φ = 52752384000.

The previous prime is 166315061347. The next prime is 166315061399. The reversal of 166315061376 is 673160513661.

It is a happy number.

166315061376 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 1 + 506 + 137 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1554346315 + ... + 1554346421.

Almost surely, 2^166315061376 is an apocalyptic number.

166315061376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166315061376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257761180800).

166315061376 is an abundant number, since it is smaller than the sum of its proper divisors (349207300224).

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

166315061376 is a wasteful number, since it uses less digits than its factorization.

166315061376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 166315061376 in words is "one hundred sixty-six billion, three hundred fifteen million, sixty-one thousand, three hundred seventy-six".