166870370037 has 32 divisors (see below), whose sum is σ = 262144346112. Its totient is φ = 92424469824.

The previous prime is 166870369961. The next prime is 166870370047. The reversal of 166870370037 is 730073078661.

It is a happy number.

It is not a de Polignac number, because 166870370037 - 2¹⁸ = 166870107893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166870370047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203943 + ... + 612644.

It is an arithmetic number, because the mean of its divisors is an integer number (8192010816).

Almost surely, 2^166870370037 is an apocalyptic number.

It is an amenable number.

166870370037 is a deficient number, since it is larger than the sum of its proper divisors (95273976075).

166870370037 is a wasteful number, since it uses less digits than its factorization.

166870370037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816897.

The product of its (nonzero) digits is 889056, while the sum is 48.

The spelling of 166870370037 in words is "one hundred sixty-six billion, eight hundred seventy million, three hundred seventy thousand, thirty-seven".