166720250046 has 32 divisors (see below), whose sum is σ = 384636314880. Its totient is φ = 47189174976.

The previous prime is 166720250023. The next prime is 166720250069. The reversal of 166720250046 is 640052027661.

It is an interprime number because it is at equal distance from previous prime (166720250023) and next prime (166720250069).

It is a junction number, because it is equal to n+sod(n) for n = 166720249986 and 166720250013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18544711 + ... + 18553698.

It is an arithmetic number, because the mean of its divisors is an integer number (12019884840).

Almost surely, 2^166720250046 is an apocalyptic number.

166720250046 is an abundant number, since it is smaller than the sum of its proper divisors (217916064834).

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

166720250046 is a wasteful number, since it uses less digits than its factorization.

166720250046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37098528.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 166720250046 in words is "one hundred sixty-six billion, seven hundred twenty million, two hundred fifty thousand, forty-six".