20242551312 has 60 divisors (see below), whose sum is σ = 57235099740. Its totient is φ = 6677950464.

The previous prime is 20242551289. The next prime is 20242551317. The reversal of 20242551312 is 21315524202.

20242551312 is a `hidden beast` number, since 202 + 425 + 5 + 1 + 31 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12854117376 + 7388433936 = 113376^2 + 85956^2 .

It is not an unprimeable number, because it can be changed into a prime (20242551317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710637 + ... + 738572.

It is an arithmetic number, because the mean of its divisors is an integer number (953918329).

Almost surely, 2^20242551312 is an apocalyptic number.

It is an amenable number.

20242551312 is an abundant number, since it is smaller than the sum of its proper divisors (36992548428).

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

20242551312 is a wasteful number, since it uses less digits than its factorization.

20242551312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449320 (or 1449311 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 20242551312 in words is "twenty billion, two hundred forty-two million, five hundred fifty-one thousand, three hundred twelve".