166332741690 has 32 divisors (see below), whose sum is σ = 403683963840. Its totient is φ = 43857021824.

The previous prime is 166332741683. The next prime is 166332741709. The reversal of 166332741690 is 96147233661.

It is a super-2 number, since 2×166332741690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31145784 + ... + 31151123.

It is an arithmetic number, because the mean of its divisors is an integer number (12615123870).

Almost surely, 2^166332741690 is an apocalyptic number.

166332741690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166332741690 is an abundant number, since it is smaller than the sum of its proper divisors (237351222150).

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

166332741690 is a wasteful number, since it uses less digits than its factorization.

166332741690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62297006.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 166332741690 in words is "one hundred sixty-six billion, three hundred thirty-two million, seven hundred forty-one thousand, six hundred ninety".