164245566240631 has 16 divisors (see below), whose sum is σ = 173192555622240. Its totient is φ = 155328885411840.

The previous prime is 164245566240583. The next prime is 164245566240647. The reversal of 164245566240631 is 136042665542461.

It is not a de Polignac number, because 164245566240631 - 2²⁹ = 164245029369719 is a prime.

It is a super-2 number, since 2×164245566240631² (a number of 29 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 (164245566240031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98322651 + ... + 99979171.

It is an arithmetic number, because the mean of its divisors is an integer number (10824534726390).

Almost surely, 2^{164245566240631} is an apocalyptic number.

164245566240631 is a deficient number, since it is larger than the sum of its proper divisors (8946989381609).

164245566240631 is a wasteful number, since it uses less digits than its factorization.

164245566240631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665666.

The product of its (nonzero) digits is 24883200, while the sum is 55.

It can be divided in two parts, 16424556 and 6240631, that added together give a cube (22665187 = 283³).

The spelling of 164245566240631 in words is "one hundred sixty-four trillion, two hundred forty-five billion, five hundred sixty-six million, two hundred forty thousand, six hundred thirty-one".