215555051336601 has 8 divisors (see below), whose sum is σ = 304313013651744. Its totient is φ = 135250228289600.

The previous prime is 215555051336593. The next prime is 215555051336659. The reversal of 215555051336601 is 106633150555512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 215555051336601 - 2³ = 215555051336593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215555051336501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2113284816975 + ... + 2113284817076.

It is an arithmetic number, because the mean of its divisors is an integer number (38039126706468).

Almost surely, 2^{215555051336601} is an apocalyptic number.

It is an amenable number.

215555051336601 is a deficient number, since it is larger than the sum of its proper divisors (88757962315143).

215555051336601 is a wasteful number, since it uses less digits than its factorization.

215555051336601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226569634071.

The product of its (nonzero) digits is 2025000, while the sum is 48.

The spelling of 215555051336601 in words is "two hundred fifteen trillion, five hundred fifty-five billion, fifty-one million, three hundred thirty-six thousand, six hundred one".