161452597663 has 8 divisors (see below), whose sum is σ = 184789811232. Its totient is φ = 138183523296.

The previous prime is 161452597627. The next prime is 161452597681. The reversal of 161452597663 is 366795254161.

It is a happy number.

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

It is not a de Polignac number, because 161452597663 - 2²¹ = 161450500511 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 (161452597613) 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, 17029720 + ... + 17039197.

It is an arithmetic number, because the mean of its divisors is an integer number (23098726404).

Almost surely, 2^161452597663 is an apocalyptic number.

161452597663 is a deficient number, since it is larger than the sum of its proper divisors (23337213569).

161452597663 is an equidigital number, since it uses as much as digits as its factorization.

161452597663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34069601.

The product of its digits is 8164800, while the sum is 55.

The spelling of 161452597663 in words is "one hundred sixty-one billion, four hundred fifty-two million, five hundred ninety-seven thousand, six hundred sixty-three".