15160651661 has 4 divisors (see below), whose sum is σ = 15386930112. Its totient is φ = 14934373212.

The previous prime is 15160651619. The next prime is 15160651669. The reversal of 15160651661 is 16615606151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15160651661 - 2¹⁴ = 15160635277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15160651669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113139125 + ... + 113139258.

It is an arithmetic number, because the mean of its divisors is an integer number (3846732528).

Almost surely, 2^15160651661 is an apocalyptic number.

It is an amenable number.

15160651661 is a deficient number, since it is larger than the sum of its proper divisors (226278451).

15160651661 is an equidigital number, since it uses as much as digits as its factorization.

15160651661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226278450.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 15160651661 in words is "fifteen billion, one hundred sixty million, six hundred fifty-one thousand, six hundred sixty-one".