10161115665 has 16 divisors (see below), whose sum is σ = 16263139200. Its totient is φ = 5417476992.

The previous prime is 10161115661. The next prime is 10161115693. The reversal of 10161115665 is 56651116101.

It is not a de Polignac number, because 10161115665 - 2² = 10161115661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10161115661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63820 + ... + 156189.

It is an arithmetic number, because the mean of its divisors is an integer number (1016446200).

Almost surely, 2^10161115665 is an apocalyptic number.

10161115665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10161115665 is a deficient number, since it is larger than the sum of its proper divisors (6102023535).

10161115665 is a wasteful number, since it uses less digits than its factorization.

10161115665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223096.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 10161115665 in words is "ten billion, one hundred sixty-one million, one hundred fifteen thousand, six hundred sixty-five".