161600628572 has 24 divisors (see below), whose sum is σ = 300459704160. Its totient is φ = 75905605440.

The previous prime is 161600628547. The next prime is 161600628589. The reversal of 161600628572 is 275826006161.

It is a super-2 number, since 2×161600628572² (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 7 ways as a sum of consecutive naturals, for example, 18821504 + ... + 18830087.

It is an arithmetic number, because the mean of its divisors is an integer number (12519154340).

Almost surely, 2^161600628572 is an apocalyptic number.

It is an amenable number.

161600628572 is a deficient number, since it is larger than the sum of its proper divisors (138859075588).

161600628572 is a wasteful number, since it uses less digits than its factorization.

161600628572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37651661 (or 37651659 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 161600628572 in words is "one hundred sixty-one billion, six hundred million, six hundred twenty-eight thousand, five hundred seventy-two".