20450632635 has 12 divisors (see below), whose sum is σ = 35447763312. Its totient is φ = 10907004048.

The previous prime is 20450632627. The next prime is 20450632639. The reversal of 20450632635 is 53623605402.

It is not a de Polignac number, because 20450632635 - 2³ = 20450632627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20450632635.

It is not an unprimeable number, because it can be changed into a prime (20450632639) 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, 227229207 + ... + 227229296.

It is an arithmetic number, because the mean of its divisors is an integer number (2953980276).

Almost surely, 2^20450632635 is an apocalyptic number.

20450632635 is a deficient number, since it is larger than the sum of its proper divisors (14997130677).

20450632635 is a wasteful number, since it uses less digits than its factorization.

20450632635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454458514 (or 454458511 counting only the distinct ones).

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

The spelling of 20450632635 in words is "twenty billion, four hundred fifty million, six hundred thirty-two thousand, six hundred thirty-five".