161570715222 has 32 divisors (see below), whose sum is σ = 369400760064. Its totient is φ = 46151028000.

The previous prime is 161570715211. The next prime is 161570715247. The reversal of 161570715222 is 222517075161.

It is a super-2 number, since 2×161570715222² (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, 337729 + ... + 661212.

It is an arithmetic number, because the mean of its divisors is an integer number (11543773752).

Almost surely, 2^161570715222 is an apocalyptic number.

161570715222 is an abundant number, since it is smaller than the sum of its proper divisors (207830044842).

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

161570715222 is a wasteful number, since it uses less digits than its factorization.

161570715222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002804.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 161570715222 in words is "one hundred sixty-one billion, five hundred seventy million, seven hundred fifteen thousand, two hundred twenty-two".