166702012854 has 32 divisors (see below), whose sum is σ = 364107550464. Its totient is φ = 50570489760.

The previous prime is 166702012853. The next prime is 166702012891. The reversal of 166702012854 is 458210207661.

It is a happy number.

It is a super-2 number, since 2×166702012854² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166702012853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15045204 + ... + 15056279.

It is an arithmetic number, because the mean of its divisors is an integer number (11378360952).

Almost surely, 2^166702012854 is an apocalyptic number.

166702012854 is an abundant number, since it is smaller than the sum of its proper divisors (197405537610).

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

166702012854 is a wasteful number, since it uses less digits than its factorization.

166702012854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30101572.

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 166702012854 in words is "one hundred sixty-six billion, seven hundred two million, twelve thousand, eight hundred fifty-four".