20135751437264 has 20 divisors (see below), whose sum is σ = 40271502875520. Its totient is φ = 9743105533920.

The previous prime is 20135751437261. The next prime is 20135751437273. The reversal of 20135751437264 is 46273415753102.

20135751437264 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135751437261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20298136034 + ... + 20298137025.

It is an arithmetic number, because the mean of its divisors is an integer number (2013575143776).

Almost surely, 2^{20135751437264} is an apocalyptic number.

It is an amenable number.

20135751437264 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20135751437264 is a wasteful number, since it uses less digits than its factorization.

20135751437264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40596273098 (or 40596273092 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 20135751437264 in words is "twenty trillion, one hundred thirty-five billion, seven hundred fifty-one million, four hundred thirty-seven thousand, two hundred sixty-four".