161040610745 has 16 divisors (see below), whose sum is σ = 221147482368. Its totient is φ = 110281953600.

The previous prime is 161040610739. The next prime is 161040610771. The reversal of 161040610745 is 547016040161.

It is a de Polignac number, because none of the positive numbers 2^k-161040610745 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3012581 + ... + 3065570.

It is an arithmetic number, because the mean of its divisors is an integer number (13821717648).

Almost surely, 2^161040610745 is an apocalyptic number.

It is an amenable number.

161040610745 is a deficient number, since it is larger than the sum of its proper divisors (60106871623).

161040610745 is an equidigital number, since it uses as much as digits as its factorization.

161040610745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6078920.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 161040610745 in words is "one hundred sixty-one billion, forty million, six hundred ten thousand, seven hundred forty-five".