66670612115170 has 32 divisors (see below), whose sum is σ = 137153960303616. Its totient is φ = 22857997780800.

The previous prime is 66670612115161. The next prime is 66670612115179. The reversal of 66670612115170 is 7151121607666.

It is an interprime number because it is at equal distance from previous prime (66670612115161) and next prime (66670612115179).

It is a super-2 number, since 2×66670612115170² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66670612115179) 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, 7126386 + ... + 13569325.

It is an arithmetic number, because the mean of its divisors is an integer number (4286061259488).

Almost surely, 2^{66670612115170} is an apocalyptic number.

66670612115170 is an abundant number, since it is smaller than the sum of its proper divisors (70483348188446).

66670612115170 is a wasteful number, since it uses less digits than its factorization.

66670612115170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20741746.

The product of its (nonzero) digits is 635040, while the sum is 49.

The spelling of 66670612115170 in words is "sixty-six trillion, six hundred seventy billion, six hundred twelve million, one hundred fifteen thousand, one hundred seventy".