166862133810 has 32 divisors (see below), whose sum is σ = 444965690880. Its totient is φ = 44496568944.

The previous prime is 166862133721. The next prime is 166862133817. The reversal of 166862133810 is 18331268661.

166862133810 is a `hidden beast` number, since 1 + 6 + 6 + 8 + 621 + 3 + 3 + 8 + 10 = 666.

It is a super-2 number, since 2×166862133810² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (166862133817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309003682 + ... + 309004221.

It is an arithmetic number, because the mean of its divisors is an integer number (13905177840).

Almost surely, 2^166862133810 is an apocalyptic number.

166862133810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166862133810 is an abundant number, since it is smaller than the sum of its proper divisors (278103557070).

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

166862133810 is a wasteful number, since it uses less digits than its factorization.

166862133810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618007919 (or 618007913 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 166862133810 in words is "one hundred sixty-six billion, eight hundred sixty-two million, one hundred thirty-three thousand, eight hundred ten".