166415631134631 has 8 divisors (see below), whose sum is σ = 223248781236480. Its totient is φ = 110263117561272.

The previous prime is 166415631134629. The next prime is 166415631134633. The reversal of 166415631134631 is 136431136514661.

It is an interprime number because it is at equal distance from previous prime (166415631134629) and next prime (166415631134633).

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

It is not a de Polignac number, because 166415631134631 - 2¹ = 166415631134629 is a prime.

It is a super-2 number, since 2×166415631134631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166415631134633) 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, 170159131551 + ... + 170159132528.

It is an arithmetic number, because the mean of its divisors is an integer number (27906097654560).

Almost surely, 2^{166415631134631} is an apocalyptic number.

166415631134631 is a deficient number, since it is larger than the sum of its proper divisors (56833150101849).

166415631134631 is a wasteful number, since it uses less digits than its factorization.

166415631134631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340318264245.

The product of its digits is 2799360, while the sum is 51.

The spelling of 166415631134631 in words is "one hundred sixty-six trillion, four hundred fifteen billion, six hundred thirty-one million, one hundred thirty-four thousand, six hundred thirty-one".