20632564530553 has 8 divisors (see below), whose sum is σ = 21135867421536. Its totient is φ = 20129264954400.

The previous prime is 20632564530547. The next prime is 20632564530583. The reversal of 20632564530553 is 35503546523602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20632564530553 - 2³⁷ = 20495125577081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20632564530497 and 20632564530506.

It is not an unprimeable number, because it can be changed into a prime (20632564530503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15785050 + ... + 17042092.

It is an arithmetic number, because the mean of its divisors is an integer number (2641983427692).

Almost surely, 2^{20632564530553} is an apocalyptic number.

It is an amenable number.

20632564530553 is a deficient number, since it is larger than the sum of its proper divisors (503302890983).

20632564530553 is a wasteful number, since it uses less digits than its factorization.

20632564530553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657415.

The product of its (nonzero) digits is 9720000, while the sum is 49.

The spelling of 20632564530553 in words is "twenty trillion, six hundred thirty-two billion, five hundred sixty-four million, five hundred thirty thousand, five hundred fifty-three".