166015077604 has 24 divisors (see below), whose sum is σ = 299929625856. Its totient is φ = 80321460000.

The previous prime is 166015077581. The next prime is 166015077607. The reversal of 166015077604 is 406770510661.

It is a super-2 number, since 2×166015077604² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166015077607) 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 7 ways as a sum of consecutive naturals, for example, 1212339 + ... + 1342309.

It is an arithmetic number, because the mean of its divisors is an integer number (12497067744).

Almost surely, 2^166015077604 is an apocalyptic number.

It is an amenable number.

166015077604 is a deficient number, since it is larger than the sum of its proper divisors (133914548252).

166015077604 is a wasteful number, since it uses less digits than its factorization.

166015077604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140307 (or 140305 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 166015077604 in words is "one hundred sixty-six billion, fifteen million, seventy-seven thousand, six hundred four".