21632563045130 has 16 divisors (see below), whose sum is σ = 38939217846984. Its totient is φ = 8652890914560.

The previous prime is 21632563045127. The next prime is 21632563045169. The reversal of 21632563045130 is 3154036523612.

It can be written as a sum of positive squares in 4 ways, for example, as 4965601659769 + 16666961385361 = 2228363^2 + 4082519^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16110131 + ... + 17401190.

Almost surely, 2^{21632563045130} is an apocalyptic number.

21632563045130 is a deficient number, since it is larger than the sum of its proper divisors (17306654801854).

21632563045130 is a wasteful number, since it uses less digits than its factorization.

21632563045130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33575881.

The product of its (nonzero) digits is 388800, while the sum is 41.

Adding to 21632563045130 its reverse (3154036523612), we get a palindrome (24786599568742).

The spelling of 21632563045130 in words is "twenty-one trillion, six hundred thirty-two billion, five hundred sixty-three million, forty-five thousand, one hundred thirty".