164859267442 has 16 divisors (see below), whose sum is σ = 248730699672. Its totient is φ = 81949311360.

The previous prime is 164859267421. The next prime is 164859267457. The reversal of 164859267442 is 244762958461.

It can be written as a sum of positive squares in 4 ways, for example, as 154819427841 + 10039839601 = 393471^2 + 100199^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153518 + ... + 1288534.

Almost surely, 2^164859267442 is an apocalyptic number.

164859267442 is a deficient number, since it is larger than the sum of its proper divisors (83871432230).

164859267442 is a wasteful number, since it uses less digits than its factorization.

164859267442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138573.

The product of its digits is 23224320, while the sum is 58.

The spelling of 164859267442 in words is "one hundred sixty-four billion, eight hundred fifty-nine million, two hundred sixty-seven thousand, four hundred forty-two".