20512441546556 has 6 divisors (see below), whose sum is σ = 35896772706480. Its totient is φ = 10256220773276.

The previous prime is 20512441546517. The next prime is 20512441546561. The reversal of 20512441546556 is 65564514421502.

It is a happy number.

It is a super-2 number, since 2×20512441546556² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564055193316 + ... + 2564055193323.

It is an arithmetic number, because the mean of its divisors is an integer number (5982795451080).

Almost surely, 2^{20512441546556} is an apocalyptic number.

It is an amenable number.

20512441546556 is a deficient number, since it is larger than the sum of its proper divisors (15384331159924).

20512441546556 is a wasteful number, since it uses less digits than its factorization.

20512441546556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128110386643 (or 5128110386641 counting only the distinct ones).

The product of its (nonzero) digits is 5760000, while the sum is 50.

The spelling of 20512441546556 in words is "twenty trillion, five hundred twelve billion, four hundred forty-one million, five hundred forty-six thousand, five hundred fifty-six".