21500157363304 has 16 divisors (see below), whose sum is σ = 40368245954400. Its totient is φ = 10735291775472.

The previous prime is 21500157363277. The next prime is 21500157363313. The reversal of 21500157363304 is 40336375100512.

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, 1848357094 + ... + 1848368725.

It is an arithmetic number, because the mean of its divisors is an integer number (2523015372150).

Almost surely, 2^{21500157363304} is an apocalyptic number.

It is an amenable number.

21500157363304 is a deficient number, since it is larger than the sum of its proper divisors (18868088591096).

21500157363304 is a wasteful number, since it uses less digits than its factorization.

21500157363304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696726552 (or 3696726548 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 21500157363304 in words is "twenty-one trillion, five hundred billion, one hundred fifty-seven million, three hundred sixty-three thousand, three hundred four".