74216562161 has 16 divisors (see below), whose sum is σ = 86142234624. Its totient is φ = 62622982224.

The previous prime is 74216562097. The next prime is 74216562197. The reversal of 74216562161 is 16126561247.

It is a cyclic number.

It is not a de Polignac number, because 74216562161 - 2⁶ = 74216562097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74216562661) 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, 662336 + ... + 766238.

It is an arithmetic number, because the mean of its divisors is an integer number (5383889664).

Almost surely, 2^74216562161 is an apocalyptic number.

It is an amenable number.

74216562161 is a deficient number, since it is larger than the sum of its proper divisors (11925672463).

74216562161 is a wasteful number, since it uses less digits than its factorization.

74216562161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105500.

The product of its digits is 120960, while the sum is 41.

The spelling of 74216562161 in words is "seventy-four billion, two hundred sixteen million, five hundred sixty-two thousand, one hundred sixty-one".