166631738350 has 48 divisors (see below), whose sum is σ = 386412518016. Its totient is φ = 51937164000.

The previous prime is 166631738333. The next prime is 166631738353. The reversal of 166631738350 is 53837136661.

166631738350 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166631738350² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166631738294 and 166631738303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166631738353) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 21636636 + ... + 21644335.

It is an arithmetic number, because the mean of its divisors is an integer number (8050260792).

Almost surely, 2^166631738350 is an apocalyptic number.

166631738350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166631738350 is an abundant number, since it is smaller than the sum of its proper divisors (219780779666).

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

166631738350 is a wasteful number, since it uses less digits than its factorization.

166631738350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43281001 (or 43280996 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 166631738350 in words is "one hundred sixty-six billion, six hundred thirty-one million, seven hundred thirty-eight thousand, three hundred fifty".