166310787050660 has 24 divisors (see below), whose sum is σ = 399145888921920. Its totient is φ = 57020841274464.

The previous prime is 166310787050659. The next prime is 166310787050663. The reversal of 166310787050660 is 66050787013661.

It is a junction number, because it is equal to n+sod(n) for n = 166310787050596 and 166310787050605.

It is not an unprimeable number, because it can be changed into a prime (166310787050663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593967096470 + ... + 593967096749.

It is an arithmetic number, because the mean of its divisors is an integer number (16631078705080).

Almost surely, 2^{166310787050660} is an apocalyptic number.

166310787050660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166310787050660 is an abundant number, since it is smaller than the sum of its proper divisors (232835101871260).

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

166310787050660 is a wasteful number, since it uses less digits than its factorization.

166310787050660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187934193235 (or 1187934193233 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 56.

The spelling of 166310787050660 in words is "one hundred sixty-six trillion, three hundred ten billion, seven hundred eighty-seven million, fifty thousand, six hundred sixty".