20636052612 has 24 divisors (see below), whose sum is σ = 55029473856. Its totient is φ = 5896015008.

The previous prime is 20636052611. The next prime is 20636052623. The reversal of 20636052612 is 21625063602.

It is not an unprimeable number, because it can be changed into a prime (20636052611) 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, 122833563 + ... + 122833730.

It is an arithmetic number, because the mean of its divisors is an integer number (2292894744).

Almost surely, 2^20636052612 is an apocalyptic number.

It is an amenable number.

20636052612 is an abundant number, since it is smaller than the sum of its proper divisors (34393421244).

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

20636052612 is a wasteful number, since it uses less digits than its factorization.

20636052612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245667307 (or 245667305 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 20636052612 in words is "twenty billion, six hundred thirty-six million, fifty-two thousand, six hundred twelve".