15216132560261 has 8 divisors (see below), whose sum is σ = 16449873038880. Its totient is φ = 14025681221328.

The previous prime is 15216132560257. The next prime is 15216132560329. The reversal of 15216132560261 is 16206523161251.

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 15216132560261 - 2² = 15216132560257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15216132560221) 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, 10822284191 + ... + 10822285596.

It is an arithmetic number, because the mean of its divisors is an integer number (2056234129860).

Almost surely, 2^{15216132560261} is an apocalyptic number.

It is an amenable number.

15216132560261 is a deficient number, since it is larger than the sum of its proper divisors (1233740478619).

15216132560261 is a wasteful number, since it uses less digits than its factorization.

15216132560261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21644569843.

The product of its (nonzero) digits is 129600, while the sum is 41.

The spelling of 15216132560261 in words is "fifteen trillion, two hundred sixteen billion, one hundred thirty-two million, five hundred sixty thousand, two hundred sixty-one".