20352446072 has 16 divisors (see below), whose sum is σ = 43612384560. Its totient is φ = 8722476864.

The previous prime is 20352446069. The next prime is 20352446111. The reversal of 20352446072 is 27064425302.

It is a super-2 number, since 2×20352446072² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 181718213 + ... + 181718324.

It is an arithmetic number, because the mean of its divisors is an integer number (2725774035).

Almost surely, 2^20352446072 is an apocalyptic number.

It is an amenable number.

20352446072 is an abundant number, since it is smaller than the sum of its proper divisors (23259938488).

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

20352446072 is a wasteful number, since it uses less digits than its factorization.

20352446072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363436550 (or 363436546 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 20352446072 in words is "twenty billion, three hundred fifty-two million, four hundred forty-six thousand, seventy-two".