15600552215 has 4 divisors (see below), whose sum is σ = 18720662664. Its totient is φ = 12480441768.

The previous prime is 15600552181. The next prime is 15600552223. The reversal of 15600552215 is 51225500651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15600552215 - 2¹⁸ = 15600290071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1560055217 + ... + 1560055226.

It is an arithmetic number, because the mean of its divisors is an integer number (4680165666).

Almost surely, 2^15600552215 is an apocalyptic number.

15600552215 is a deficient number, since it is larger than the sum of its proper divisors (3120110449).

15600552215 is an equidigital number, since it uses as much as digits as its factorization.

15600552215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120110448.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 15600552215 in words is "fifteen billion, six hundred million, five hundred fifty-two thousand, two hundred fifteen".