161435530716 has 48 divisors (see below), whose sum is σ = 379205195040. Its totient is φ = 53451740160.

The previous prime is 161435530709. The next prime is 161435530721. The reversal of 161435530716 is 617035534161.

It is a happy number.

It is a super-2 number, since 2×161435530716² (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 15 ways as a sum of consecutive naturals, for example, 6636496 + ... + 6660776.

It is an arithmetic number, because the mean of its divisors is an integer number (7900108230).

Almost surely, 2^161435530716 is an apocalyptic number.

It is an amenable number.

161435530716 is an abundant number, since it is smaller than the sum of its proper divisors (217769664324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161435530716 is a wasteful number, since it uses less digits than its factorization.

161435530716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27974 (or 27972 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 42.

The spelling of 161435530716 in words is "one hundred sixty-one billion, four hundred thirty-five million, five hundred thirty thousand, seven hundred sixteen".