166004460701 has 4 divisors (see below), whose sum is σ = 174741537600. Its totient is φ = 157267383804.

The previous prime is 166004460697. The next prime is 166004460733. The reversal of 166004460701 is 107064400661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 107064400661 = 132137 ⋅810253.

It is a cyclic number.

It is not a de Polignac number, because 166004460701 - 2² = 166004460697 is a prime.

It is a super-2 number, since 2×166004460701² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166004460751) 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, 4368538421 + ... + 4368538458.

It is an arithmetic number, because the mean of its divisors is an integer number (43685384400).

Almost surely, 2^166004460701 is an apocalyptic number.

It is an amenable number.

166004460701 is a deficient number, since it is larger than the sum of its proper divisors (8737076899).

166004460701 is an equidigital number, since it uses as much as digits as its factorization.

166004460701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8737076898.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 166004460701 in words is "one hundred sixty-six billion, four million, four hundred sixty thousand, seven hundred one".