20026664625 has 48 divisors (see below), whose sum is σ = 36629349120. Its totient is φ = 9709876000.

The previous prime is 20026664617. The next prime is 20026664689. The reversal of 20026664625 is 52646662002.

It is not a de Polignac number, because 20026664625 - 2³ = 20026664617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175305 + ... + 266054.

It is an arithmetic number, because the mean of its divisors is an integer number (763111440).

Almost surely, 2^20026664625 is an apocalyptic number.

20026664625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20026664625 is a deficient number, since it is larger than the sum of its proper divisors (16602684495).

20026664625 is a wasteful number, since it uses less digits than its factorization.

20026664625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441399 (or 441378 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 20026664625 in words is "twenty billion, twenty-six million, six hundred sixty-four thousand, six hundred twenty-five".