161520707058 has 16 divisors (see below), whose sum is σ = 323514396576. Its totient is φ = 53761405280.

The previous prime is 161520707053. The next prime is 161520707069. The reversal of 161520707058 is 850707025161.

It is a super-3 number, since 3×161520707058³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (161520707053) 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, 19703163 + ... + 19711358.

It is an arithmetic number, because the mean of its divisors is an integer number (20219649786).

Almost surely, 2^161520707058 is an apocalyptic number.

161520707058 is an abundant number, since it is smaller than the sum of its proper divisors (161993689518).

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

161520707058 is a wasteful number, since it uses less digits than its factorization.

161520707058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39415209.

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 161520707058 in words is "one hundred sixty-one billion, five hundred twenty million, seven hundred seven thousand, fifty-eight".