20072355612772 has 12 divisors (see below), whose sum is σ = 35983369208556. Its totient is φ = 9791392981760.

The previous prime is 20072355612769. The next prime is 20072355612779. The reversal of 20072355612772 is 27721655327002.

It can be written as a sum of positive squares in 2 ways, for example, as 9229784259136 + 10842571353636 = 3038056^2 + 3292806^2 .

It is a super-2 number, since 2×20072355612772² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20072355612779) 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, 61196205973 + ... + 61196206300.

It is an arithmetic number, because the mean of its divisors is an integer number (2998614100713).

Almost surely, 2^{20072355612772} is an apocalyptic number.

It is an amenable number.

20072355612772 is a deficient number, since it is larger than the sum of its proper divisors (15911013595784).

20072355612772 is a wasteful number, since it uses less digits than its factorization.

20072355612772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122392412318 (or 122392412316 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 20072355612772 in words is "twenty trillion, seventy-two billion, three hundred fifty-five million, six hundred twelve thousand, seven hundred seventy-two".