215555412351023 has 32 divisors (see below), whose sum is σ = 220852488911040. Its totient is φ = 210323830210560.

The previous prime is 215555412351011. The next prime is 215555412351031. The reversal of 215555412351023 is 320153214555512.

It is a cyclic number.

It is not a de Polignac number, because 215555412351023 - 2⁶ = 215555412350959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215555412351823) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3790090115 + ... + 3790146987.

It is an arithmetic number, because the mean of its divisors is an integer number (6901640278470).

Almost surely, 2^{215555412351023} is an apocalyptic number.

215555412351023 is a deficient number, since it is larger than the sum of its proper divisors (5297076560017).

215555412351023 is a wasteful number, since it uses less digits than its factorization.

215555412351023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58187.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 215555412351023 in words is "two hundred fifteen trillion, five hundred fifty-five billion, four hundred twelve million, three hundred fifty-one thousand, twenty-three".