426640160625 has 40 divisors (see below), whose sum is σ = 812387902656. Its totient is φ = 195035496000.

The previous prime is 426640160581. The next prime is 426640160627. The reversal of 426640160625 is 526061046624.

It is not a de Polignac number, because 426640160625 - 2¹⁰ = 426640159601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426640160627) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 16239834 + ... + 16266083.

Almost surely, 2^426640160625 is an apocalyptic number.

It is an amenable number.

426640160625 is a deficient number, since it is larger than the sum of its proper divisors (385747742031).

426640160625 is an equidigital number, since it uses as much as digits as its factorization.

426640160625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32505947 (or 32505932 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 426640160625 in words is "four hundred twenty-six billion, six hundred forty million, one hundred sixty thousand, six hundred twenty-five".