166899842260 has 48 divisors (see below), whose sum is σ = 380158122960. Its totient is φ = 61300367360.

The previous prime is 166899842227. The next prime is 166899842267. The reversal of 166899842260 is 62248998661.

It can be written as a sum of positive squares in 8 ways, for example, as 1050537744 + 165849304516 = 32412^2 + 407246^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166899842267) 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, 5972425 + ... + 6000304.

It is an arithmetic number, because the mean of its divisors is an integer number (7919960895).

Almost surely, 2^166899842260 is an apocalyptic number.

166899842260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166899842260 is an abundant number, since it is smaller than the sum of its proper divisors (213258280700).

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

166899842260 is a wasteful number, since it uses less digits than its factorization.

166899842260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11972796 (or 11972794 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 166899842260 in words is "one hundred sixty-six billion, eight hundred ninety-nine million, eight hundred forty-two thousand, two hundred sixty".