20001540352 has 36 divisors (see below), whose sum is σ = 41301687420. Its totient is φ = 9655912448.

The previous prime is 20001540329. The next prime is 20001540413. The reversal of 20001540352 is 25304510002.

It can be written as a sum of positive squares in 2 ways, for example, as 9528883456 + 10472656896 = 97616^2 + 102336^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1339663 + ... + 1354510.

It is an arithmetic number, because the mean of its divisors is an integer number (1147269095).

Almost surely, 2^20001540352 is an apocalyptic number.

It is an amenable number.

20001540352 is an abundant number, since it is smaller than the sum of its proper divisors (21300147068).

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

20001540352 is an equidigital number, since it uses as much as digits as its factorization.

20001540352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2694218 (or 2694204 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The spelling of 20001540352 in words is "twenty billion, one million, five hundred forty thousand, three hundred fifty-two".