20135751463215 has 48 divisors (see below), whose sum is σ = 35133914248992. Its totient is φ = 10667806555392.

The previous prime is 20135751463187. The next prime is 20135751463291. The reversal of 20135751463215 is 51236415753102.

20135751463215 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 5 + 7 + 5 + 1 + 4 + 632 + 1 + 5 = 666.

It is not a de Polignac number, because 20135751463215 - 2³⁹ = 19585995649327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7941969 + ... + 10165941.

It is an arithmetic number, because the mean of its divisors is an integer number (731956546854).

Almost surely, 2^{20135751463215} is an apocalyptic number.

20135751463215 is a deficient number, since it is larger than the sum of its proper divisors (14998162785777).

20135751463215 is a wasteful number, since it uses less digits than its factorization.

20135751463215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225320 (or 2225317 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 20135751463215 in words is "twenty trillion, one hundred thirty-five billion, seven hundred fifty-one million, four hundred sixty-three thousand, two hundred fifteen".