166713843252 has 24 divisors (see below), whose sum is σ = 424362510432. Its totient is φ = 50519346400.

The previous prime is 166713843193. The next prime is 166713843269. The reversal of 166713843252 is 252348317661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631491699 + ... + 631491962.

It is an arithmetic number, because the mean of its divisors is an integer number (17681771268).

Almost surely, 2^166713843252 is an apocalyptic number.

166713843252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166713843252 is an abundant number, since it is smaller than the sum of its proper divisors (257648667180).

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

166713843252 is a wasteful number, since it uses less digits than its factorization.

166713843252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262983679 (or 1262983677 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 166713843252 in words is "one hundred sixty-six billion, seven hundred thirteen million, eight hundred forty-three thousand, two hundred fifty-two".