160515115661 has 8 divisors (see below), whose sum is σ = 165519066048. Its totient is φ = 155563020000.

The previous prime is 160515115603. The next prime is 160515115687. The reversal of 160515115661 is 166511515061.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 160515115661 - 2²² = 160510921357 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 (160515117661) 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, 12957395 + ... + 12969776.

It is an arithmetic number, because the mean of its divisors is an integer number (20689883256).

Almost surely, 2^160515115661 is an apocalyptic number.

It is an amenable number.

160515115661 is a deficient number, since it is larger than the sum of its proper divisors (5003950387).

160515115661 is a wasteful number, since it uses less digits than its factorization.

160515115661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25927363.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 160515115661 in words is "one hundred sixty billion, five hundred fifteen million, one hundred fifteen thousand, six hundred sixty-one".