166312601038706 has 4 divisors (see below), whose sum is σ = 249468901558062. Its totient is φ = 83156300519352.

The previous prime is 166312601038687. The next prime is 166312601038721. The reversal of 166312601038706 is 607830106213661.

166312601038706 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 can be written as a sum of positive squares in only one way, i.e., 119831445030025 + 46481156008681 = 10946755^2 + 6817709^2 .

It is a super-2 number, since 2×166312601038706² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41578150259675 + ... + 41578150259678.

Almost surely, 2^{166312601038706} is an apocalyptic number.

166312601038706 is a deficient number, since it is larger than the sum of its proper divisors (83156300519356).

166312601038706 is an equidigital number, since it uses as much as digits as its factorization.

166312601038706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83156300519355.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 166312601038706 in words is "one hundred sixty-six trillion, three hundred twelve billion, six hundred one million, thirty-eight thousand, seven hundred six".