20025664630 has 16 divisors (see below), whose sum is σ = 36048093840. Its totient is φ = 8009844192.

The previous prime is 20025664627. The next prime is 20025664643. The reversal of 20025664630 is 3646652002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208312 + ... + 288868.

It is an arithmetic number, because the mean of its divisors is an integer number (2253005865).

Almost surely, 2^20025664630 is an apocalyptic number.

20025664630 is a deficient number, since it is larger than the sum of its proper divisors (16022429210).

20025664630 is a wasteful number, since it uses less digits than its factorization.

20025664630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105423.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 20025664630 in words is "twenty billion, twenty-five million, six hundred sixty-four thousand, six hundred thirty".