20630523654 has 24 divisors (see below), whose sum is σ = 48137889072. Its totient is φ = 6347853360.

The previous prime is 20630523637. The next prime is 20630523659. The reversal of 20630523654 is 45632503602.

20630523654 is a `hidden beast` number, since 20 + 63 + 0 + 523 + 6 + 54 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630523659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44082082 + ... + 44082549.

It is an arithmetic number, because the mean of its divisors is an integer number (2005745378).

Almost surely, 2^20630523654 is an apocalyptic number.

20630523654 is an abundant number, since it is smaller than the sum of its proper divisors (27507365418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20630523654 is a wasteful number, since it uses less digits than its factorization.

20630523654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88164652 (or 88164649 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 20630523654 in words is "twenty billion, six hundred thirty million, five hundred twenty-three thousand, six hundred fifty-four".