20251536500404 has 72 divisors (see below), whose sum is σ = 40204958592960. Its totient is φ = 8846681500800.

The previous prime is 20251536500353. The next prime is 20251536500441. The reversal of 20251536500404 is 40400563515202.

It is a super-3 number, since 3×20251536500404³ (a number of 41 digits) contains 333 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 (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6847777 + ... + 9348535.

It is an arithmetic number, because the mean of its divisors is an integer number (558402202680).

Almost surely, 2^{20251536500404} is an apocalyptic number.

It is an amenable number.

20251536500404 is a deficient number, since it is larger than the sum of its proper divisors (19953422092556).

20251536500404 is a wasteful number, since it uses less digits than its factorization.

20251536500404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500949 (or 2500880 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 20251536500404 in words is "twenty trillion, two hundred fifty-one billion, five hundred thirty-six million, five hundred thousand, four hundred four".