166864707460 has 24 divisors (see below), whose sum is σ = 382271875776. Its totient is φ = 60678075360.

The previous prime is 166864707439. The next prime is 166864707481. The reversal of 166864707460 is 64707468661.

166864707460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166864707439) and next prime (166864707481).

It is a super-2 number, since 2×166864707460² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 379237752 + ... + 379238191.

It is an arithmetic number, because the mean of its divisors is an integer number (15927994824).

Almost surely, 2^166864707460 is an apocalyptic number.

166864707460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166864707460 is an abundant number, since it is smaller than the sum of its proper divisors (215407168316).

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

166864707460 is a wasteful number, since it uses less digits than its factorization.

166864707460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758475963 (or 758475961 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 166864707460 in words is "one hundred sixty-six billion, eight hundred sixty-four million, seven hundred seven thousand, four hundred sixty".