20344513056630 has 64 divisors (see below), whose sum is σ = 57602160488448. Its totient is φ = 4500168785280.

The previous prime is 20344513056619. The next prime is 20344513056631. The reversal of 20344513056630 is 3665031544302.

It is a super-2 number, since 2×20344513056630² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344513056631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1562552097 + ... + 1562565116.

It is an arithmetic number, because the mean of its divisors is an integer number (900033757632).

Almost surely, 2^{20344513056630} is an apocalyptic number.

20344513056630 is an abundant number, since it is smaller than the sum of its proper divisors (37257647431818).

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

20344513056630 is a wasteful number, since it uses less digits than its factorization.

20344513056630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125117261.

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 20344513056630 in words is "twenty trillion, three hundred forty-four billion, five hundred thirteen million, fifty-six thousand, six hundred thirty".