20630564632 has 32 divisors (see below), whose sum is σ = 39160442880. Its totient is φ = 10188306720.

The previous prime is 20630564627. The next prime is 20630564651. The reversal of 20630564632 is 23646503602.

It is a junction number, because it is equal to n+sod(n) for n = 20630564591 and 20630564600.

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, 282907 + ... + 348277.

It is an arithmetic number, because the mean of its divisors is an integer number (1223763840).

Almost surely, 2^20630564632 is an apocalyptic number.

It is an amenable number.

20630564632 is a deficient number, since it is larger than the sum of its proper divisors (18529878248).

20630564632 is a wasteful number, since it uses less digits than its factorization.

20630564632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65863 (or 65859 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 20630564632 in words is "twenty billion, six hundred thirty million, five hundred sixty-four thousand, six hundred thirty-two".