20162781152 has 48 divisors (see below), whose sum is σ = 42061622400. Its totient is φ = 9487497600.

The previous prime is 20162781137. The next prime is 20162781169. The reversal of 20162781152 is 25118726102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18002 + ... + 201617.

It is an arithmetic number, because the mean of its divisors is an integer number (876283800).

Almost surely, 2^20162781152 is an apocalyptic number.

It is an amenable number.

20162781152 is an abundant number, since it is smaller than the sum of its proper divisors (21898841248).

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

20162781152 is a wasteful number, since it uses less digits than its factorization.

20162781152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219799 (or 219791 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 20162781152 in words is "twenty billion, one hundred sixty-two million, seven hundred eighty-one thousand, one hundred fifty-two".