166331503703707 has 4 divisors (see below), whose sum is σ = 166495700648160. Its totient is φ = 166167306759256.

The previous prime is 166331503703683. The next prime is 166331503703753. The reversal of 166331503703707 is 707307305133661.

166331503703707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166331503703707 - 2⁷ = 166331503703579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166331503103707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82098470707 + ... + 82098472732.

It is an arithmetic number, because the mean of its divisors is an integer number (41623925162040).

Almost surely, 2^{166331503703707} is an apocalyptic number.

166331503703707 is a deficient number, since it is larger than the sum of its proper divisors (164196944453).

166331503703707 is a wasteful number, since it uses less digits than its factorization.

166331503703707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164196944452.

The product of its (nonzero) digits is 5000940, while the sum is 52.

The spelling of 166331503703707 in words is "one hundred sixty-six trillion, three hundred thirty-one billion, five hundred three million, seven hundred three thousand, seven hundred seven".