166316851137 has 8 divisors (see below), whose sum is σ = 221757764800. Its totient is φ = 110876919120.

The previous prime is 166316851123. The next prime is 166316851193. The reversal of 166316851137 is 731158613661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166316851137 - 2¹² = 166316847041 is a prime.

It is a super-2 number, since 2×166316851137² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166316851037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371364 + ... + 685962.

It is an arithmetic number, because the mean of its divisors is an integer number (27719720600).

Almost surely, 2^166316851137 is an apocalyptic number.

It is an amenable number.

166316851137 is a deficient number, since it is larger than the sum of its proper divisors (55440913663).

166316851137 is a wasteful number, since it uses less digits than its factorization.

166316851137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490823.

The product of its digits is 544320, while the sum is 48.

The spelling of 166316851137 in words is "one hundred sixty-six billion, three hundred sixteen million, eight hundred fifty-one thousand, one hundred thirty-seven".