15065410661 has 4 divisors (see below), whose sum is σ = 17217612192. Its totient is φ = 12913209132.

The previous prime is 15065410627. The next prime is 15065410663. The reversal of 15065410661 is 16601456051.

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 a de Polignac number, because none of the positive numbers 2^k-15065410661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15065410663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1076100755 + ... + 1076100768.

It is an arithmetic number, because the mean of its divisors is an integer number (4304403048).

Almost surely, 2^15065410661 is an apocalyptic number.

It is an amenable number.

15065410661 is a deficient number, since it is larger than the sum of its proper divisors (2152201531).

15065410661 is an equidigital number, since it uses as much as digits as its factorization.

15065410661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152201530.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 15065410661 in words is "fifteen billion, sixty-five million, four hundred ten thousand, six hundred sixty-one".