166677755560 has 16 divisors (see below), whose sum is σ = 375024950100. Its totient is φ = 66671102208.

The previous prime is 166677755533. The next prime is 166677755591. The reversal of 166677755560 is 65557776661.

It is a happy number.

166677755560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 147061512196 + 19616243364 = 383486^2 + 140058^2 .

It is a super-2 number, since 2×166677755560² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083471905 + ... + 2083471984.

Almost surely, 2^166677755560 is an apocalyptic number.

166677755560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166677755560 is an abundant number, since it is smaller than the sum of its proper divisors (208347194540).

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

166677755560 is a wasteful number, since it uses less digits than its factorization.

166677755560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4166943900 (or 4166943896 counting only the distinct ones).

The product of its (nonzero) digits is 55566000, while the sum is 61.

The spelling of 166677755560 in words is "one hundred sixty-six billion, six hundred seventy-seven million, seven hundred fifty-five thousand, five hundred sixty".