20351273532264 has 192 divisors, whose sum is σ = 59251041008640. Its totient is φ = 6287470479360.

The previous prime is 20351273532241. The next prime is 20351273532277. The reversal of 20351273532264 is 46223537215302.

20351273532264 is a `hidden beast` number, since 2 + 0 + 3 + 51 + 2 + 7 + 3 + 532 + 2 + 64 = 666.

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 47 ways as a sum of consecutive naturals, for example, 74862474 + ... + 75133830.

It is an arithmetic number, because the mean of its divisors is an integer number (308599171920).

Almost surely, 2^{20351273532264} is an apocalyptic number.

20351273532264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20351273532264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29625520504320).

20351273532264 is an abundant number, since it is smaller than the sum of its proper divisors (38899767476376).

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

20351273532264 is a wasteful number, since it uses less digits than its factorization.

20351273532264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272320 (or 272313 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 45.

The spelling of 20351273532264 in words is "twenty trillion, three hundred fifty-one billion, two hundred seventy-three million, five hundred thirty-two thousand, two hundred sixty-four".