20352458678500 has 48 divisors (see below), whose sum is σ = 47868982827120. Its totient is φ = 7514753971200.

The previous prime is 20352458678477. The next prime is 20352458678507. The reversal of 20352458678500 is 587685425302.

It can be written as a sum of positive squares in 8 ways, for example, as 16739030264896 + 3613428413604 = 4091336^2 + 1900902^2 .

It is not an unprimeable number, because it can be changed into a prime (20352458678507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1565567245 + ... + 1565580244.

It is an arithmetic number, because the mean of its divisors is an integer number (997270475565).

Almost surely, 2^{20352458678500} is an apocalyptic number.

20352458678500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20352458678500 is an abundant number, since it is smaller than the sum of its proper divisors (27516524148620).

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

20352458678500 is a wasteful number, since it uses less digits than its factorization.

20352458678500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131147521 (or 3131147509 counting only the distinct ones).

The product of its (nonzero) digits is 16128000, while the sum is 55.

The spelling of 20352458678500 in words is "twenty trillion, three hundred fifty-two billion, four hundred fifty-eight million, six hundred seventy-eight thousand, five hundred".