161476417663 has 4 divisors (see below), whose sum is σ = 176156092008. Its totient is φ = 146796743320.

The previous prime is 161476417639. The next prime is 161476417679. The reversal of 161476417663 is 366714674161.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161476417663 is a prime.

It is a super-2 number, since 2×161476417663² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161476417663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161476417163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7339837156 + ... + 7339837177.

It is an arithmetic number, because the mean of its divisors is an integer number (44039023002).

Almost surely, 2^161476417663 is an apocalyptic number.

161476417663 is a deficient number, since it is larger than the sum of its proper divisors (14679674345).

161476417663 is a wasteful number, since it uses less digits than its factorization.

161476417663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14679674344.

The product of its digits is 3048192, while the sum is 52.

The spelling of 161476417663 in words is "one hundred sixty-one billion, four hundred seventy-six million, four hundred seventeen thousand, six hundred sixty-three".