161047676531 has 8 divisors (see below), whose sum is σ = 184288362240. Its totient is φ = 137865459528.

The previous prime is 161047676521. The next prime is 161047676533. The reversal of 161047676531 is 135676740161.

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 161047676531 - 2³⁰ = 159973934707 is a prime.

It is a super-2 number, since 2×161047676531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161047676533) 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, 14611271 + ... + 14622288.

It is an arithmetic number, because the mean of its divisors is an integer number (23036045280).

Almost surely, 2^161047676531 is an apocalyptic number.

161047676531 is a deficient number, since it is larger than the sum of its proper divisors (23240685709).

161047676531 is an equidigital number, since it uses as much as digits as its factorization.

161047676531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29234353.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 161047676531 in words is "one hundred sixty-one billion, forty-seven million, six hundred seventy-six thousand, five hundred thirty-one".