116161615653 has 4 divisors (see below), whose sum is σ = 154882154208. Its totient is φ = 77441077100.

The previous prime is 116161615649. The next prime is 116161615663. The reversal of 116161615653 is 356516161611.

It is a happy number.

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 116161615653 - 2² = 116161615649 is a prime.

It is a super-2 number, since 2×116161615653² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116161615643) 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, 19360269273 + ... + 19360269278.

It is an arithmetic number, because the mean of its divisors is an integer number (38720538552).

Almost surely, 2^116161615653 is an apocalyptic number.

It is an amenable number.

116161615653 is a deficient number, since it is larger than the sum of its proper divisors (38720538555).

116161615653 is an equidigital number, since it uses as much as digits as its factorization.

116161615653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38720538554.

The product of its digits is 97200, while the sum is 42.

The spelling of 116161615653 in words is "one hundred sixteen billion, one hundred sixty-one million, six hundred fifteen thousand, six hundred fifty-three".