662057771166 has 96 divisors (see below), whose sum is σ = 1573030368000. Its totient is φ = 199578032640.

The previous prime is 662057771147. The next prime is 662057771171. The reversal of 662057771166 is 661177750266.

662057771166 is a `hidden beast` number, since 6 + 6 + 2 + 0 + 577 + 7 + 1 + 1 + 66 = 666.

It is a super-2 number, since 2×662057771166² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62874190 + ... + 62884718.

It is an arithmetic number, because the mean of its divisors is an integer number (16385733000).

Almost surely, 2^662057771166 is an apocalyptic number.

662057771166 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 662057771166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (786515184000).

662057771166 is an abundant number, since it is smaller than the sum of its proper divisors (910972596834).

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

662057771166 is a wasteful number, since it uses less digits than its factorization.

662057771166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12174 (or 12171 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 54.

The spelling of 662057771166 in words is "six hundred sixty-two billion, fifty-seven million, seven hundred seventy-one thousand, one hundred sixty-six".