215507260241 has 24 divisors (see below), whose sum is σ = 267164973504. Its totient is φ = 170212086720.

The previous prime is 215507260229. The next prime is 215507260261. The reversal of 215507260241 is 142062705512.

It is not a de Polignac number, because 215507260241 - 2³⁰ = 214433518417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215507260211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 515975 + ... + 835011.

It is an arithmetic number, because the mean of its divisors is an integer number (11131873896).

Almost surely, 2^215507260241 is an apocalyptic number.

It is an amenable number.

215507260241 is a deficient number, since it is larger than the sum of its proper divisors (51657713263).

215507260241 is a wasteful number, since it uses less digits than its factorization.

215507260241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319641 (or 319628 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 215507260241 its reverse (142062705512), we get a palindrome (357569965753).

The spelling of 215507260241 in words is "two hundred fifteen billion, five hundred seven million, two hundred sixty thousand, two hundred forty-one".