15560601655 has 4 divisors (see below), whose sum is σ = 18672721992. Its totient is φ = 12448481320.

The previous prime is 15560601643. The next prime is 15560601673. The reversal of 15560601655 is 55610606551.

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

It is not a de Polignac number, because 15560601655 - 2¹⁹ = 15560077367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1556060161 + ... + 1556060170.

It is an arithmetic number, because the mean of its divisors is an integer number (4668180498).

Almost surely, 2^15560601655 is an apocalyptic number.

15560601655 is a deficient number, since it is larger than the sum of its proper divisors (3112120337).

15560601655 is an equidigital number, since it uses as much as digits as its factorization.

15560601655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112120336.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 15560601655 in words is "fifteen billion, five hundred sixty million, six hundred one thousand, six hundred fifty-five".