166723343056464 has 40 divisors (see below), whose sum is σ = 430702619190720. Its totient is φ = 55574363862528.

The previous prime is 166723343056447. The next prime is 166723343056471. The reversal of 166723343056464 is 464650343327661.

166723343056464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166723343056398 and 166723343056407.

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, 35150344 + ... + 39610520.

It is an arithmetic number, because the mean of its divisors is an integer number (10767565479768).

Almost surely, 2^{166723343056464} is an apocalyptic number.

It is an amenable number.

166723343056464 is an abundant number, since it is smaller than the sum of its proper divisors (263979276134256).

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

166723343056464 is a wasteful number, since it uses less digits than its factorization.

166723343056464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238947 (or 5238941 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 60.

The spelling of 166723343056464 in words is "one hundred sixty-six trillion, seven hundred twenty-three billion, three hundred forty-three million, fifty-six thousand, four hundred sixty-four".