1011161610115 has 4 divisors (see below), whose sum is σ = 1213393932144. Its totient is φ = 808929288088.

The previous prime is 1011161610101. The next prime is 1011161610131. The reversal of 1011161610115 is 5110161611101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011161610115 - 2⁷ = 1011161609987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1011161610115.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101116161007 + ... + 101116161016.

It is an arithmetic number, because the mean of its divisors is an integer number (303348483036).

Almost surely, 2^{1011161610115} is an apocalyptic number.

1011161610115 is a deficient number, since it is larger than the sum of its proper divisors (202232322029).

1011161610115 is an equidigital number, since it uses as much as digits as its factorization.

1011161610115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202232322028.

The product of its (nonzero) digits is 180, while the sum is 25.

The spelling of 1011161610115 in words is "one trillion, eleven billion, one hundred sixty-one million, six hundred ten thousand, one hundred fifteen".