215036161266231 has 24 divisors (see below), whose sum is σ = 320474240873280. Its totient is φ = 138872170996416.

The previous prime is 215036161266181. The next prime is 215036161266287. The reversal of 215036161266231 is 132662161630512.

It is a happy number.

215036161266231 is a `hidden beast` number, since 2 + 1 + 5 + 0 + 3 + 6 + 1 + 6 + 12 + 6 + 623 + 1 = 666.

It is not a de Polignac number, because 215036161266231 - 2⁶ = 215036161266167 is a prime.

It is a super-2 number, since 2×215036161266231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215036161266131) 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, 2853187396 + ... + 2853262761.

It is an arithmetic number, because the mean of its divisors is an integer number (13353093369720).

Almost surely, 2^{215036161266231} is an apocalyptic number.

215036161266231 is a deficient number, since it is larger than the sum of its proper divisors (105438079607049).

215036161266231 is a wasteful number, since it uses less digits than its factorization.

215036161266231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5706450295 (or 5706450292 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 215036161266231 in words is "two hundred fifteen trillion, thirty-six billion, one hundred sixty-one million, two hundred sixty-six thousand, two hundred thirty-one".