20614512556 has 96 divisors (see below), whose sum is σ = 42162591744. Its totient is φ = 8729856000.

The previous prime is 20614512491. The next prime is 20614512557. The reversal of 20614512556 is 65521541602.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (20614512557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4893291 + ... + 4897501.

It is an arithmetic number, because the mean of its divisors is an integer number (439193664).

Almost surely, 2^20614512556 is an apocalyptic number.

It is an amenable number.

20614512556 is an abundant number, since it is smaller than the sum of its proper divisors (21548079188).

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

20614512556 is a wasteful number, since it uses less digits than its factorization.

20614512556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4391 (or 4389 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 20614512556 in words is "twenty billion, six hundred fourteen million, five hundred twelve thousand, five hundred fifty-six".