161156604302 has 8 divisors (see below), whose sum is σ = 242654051376. Its totient is φ = 80271920512.

The previous prime is 161156604293. The next prime is 161156604311. The reversal of 161156604302 is 203406651161.

It is an interprime number because it is at equal distance from previous prime (161156604293) and next prime (161156604311).

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

It is a super-2 number, since 2×161156604302² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153190163 + ... + 153191214.

It is an arithmetic number, because the mean of its divisors is an integer number (30331756422).

Almost surely, 2^161156604302 is an apocalyptic number.

161156604302 is a deficient number, since it is larger than the sum of its proper divisors (81497447074).

161156604302 is a wasteful number, since it uses less digits than its factorization.

161156604302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306381642.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 161156604302 in words is "one hundred sixty-one billion, one hundred fifty-six million, six hundred four thousand, three hundred two".