166792457842580 has 12 divisors (see below), whose sum is σ = 350264161469460. Its totient is φ = 66716983137024.

The previous prime is 166792457842579. The next prime is 166792457842627. The reversal of 166792457842580 is 85248754297661.

It can be written as a sum of positive squares in 2 ways, for example, as 54385049642884 + 112407408199696 = 7374622^2 + 10602236^2 .

It is a super-2 number, since 2×166792457842580² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166792457842498 and 166792457842507.

It is a congruent number.

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, 4169811446045 + ... + 4169811446084.

It is an arithmetic number, because the mean of its divisors is an integer number (29188680122455).

Almost surely, 2^{166792457842580} is an apocalyptic number.

166792457842580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166792457842580 is an abundant number, since it is smaller than the sum of its proper divisors (183471703626880).

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

166792457842580 is a wasteful number, since it uses less digits than its factorization.

166792457842580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8339622892138 (or 8339622892136 counting only the distinct ones).

The product of its (nonzero) digits is 1625702400, while the sum is 74.

The spelling of 166792457842580 in words is "one hundred sixty-six trillion, seven hundred ninety-two billion, four hundred fifty-seven million, eight hundred forty-two thousand, five hundred eighty".