161952688942 has 16 divisors (see below), whose sum is σ = 265019788800. Its totient is φ = 73613109240.

The previous prime is 161952688939. The next prime is 161952688951. The reversal of 161952688942 is 249886259161.

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, 1497859 + ... + 1602337.

It is an arithmetic number, because the mean of its divisors is an integer number (16563736800).

Almost surely, 2^161952688942 is an apocalyptic number.

161952688942 is a deficient number, since it is larger than the sum of its proper divisors (103067099858).

161952688942 is a wasteful number, since it uses less digits than its factorization.

161952688942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174951.

The product of its digits is 14929920, while the sum is 61.

The spelling of 161952688942 in words is "one hundred sixty-one billion, nine hundred fifty-two million, six hundred eighty-eight thousand, nine hundred forty-two".