215150656176351 has 48 divisors (see below), whose sum is σ = 364445551229760. Its totient is φ = 119742348349440.

The previous prime is 215150656176241. The next prime is 215150656176361. The reversal of 215150656176351 is 153671656051512.

215150656176351 is a `hidden beast` number, since 2 + 1 + 5 + 1 + 5 + 0 + 6 + 561 + 76 + 3 + 5 + 1 = 666.

It is not a de Polignac number, because 215150656176351 - 2¹¹ = 215150656174303 is a prime.

It is a super-2 number, since 2×215150656176351² (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 (215150656176361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68700046 + ... + 71763483.

It is an arithmetic number, because the mean of its divisors is an integer number (7592615650620).

Almost surely, 2^{215150656176351} is an apocalyptic number.

215150656176351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

215150656176351 is a deficient number, since it is larger than the sum of its proper divisors (149294895053409).

215150656176351 is a wasteful number, since it uses less digits than its factorization.

215150656176351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140464176 (or 140464173 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 54.

The spelling of 215150656176351 in words is "two hundred fifteen trillion, one hundred fifty billion, six hundred fifty-six million, one hundred seventy-six thousand, three hundred fifty-one".