116165120821 has 8 divisors (see below), whose sum is σ = 122392632960. Its totient is φ = 110035679952.

The previous prime is 116165120803. The next prime is 116165120833. The reversal of 116165120821 is 128021561611.

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

It is a cyclic number.

It is not a de Polignac number, because 116165120821 - 2¹⁷ = 116164989749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116165120881) 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, 24515386 + ... + 24520123.

It is an arithmetic number, because the mean of its divisors is an integer number (15299079120).

Almost surely, 2^116165120821 is an apocalyptic number.

It is an amenable number.

116165120821 is a deficient number, since it is larger than the sum of its proper divisors (6227512139).

116165120821 is a wasteful number, since it uses less digits than its factorization.

116165120821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49035635.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 116165120821 in words is "one hundred sixteen billion, one hundred sixty-five million, one hundred twenty thousand, eight hundred twenty-one".