161357316124 has 6 divisors (see below), whose sum is σ = 282375303224. Its totient is φ = 80678658060.

The previous prime is 161357316121. The next prime is 161357316143. The reversal of 161357316124 is 421613753161.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161357316121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20169664512 + ... + 20169664519.

Almost surely, 2^161357316124 is an apocalyptic number.

It is an amenable number.

161357316124 is a deficient number, since it is larger than the sum of its proper divisors (121017987100).

161357316124 is a wasteful number, since it uses less digits than its factorization.

161357316124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40339329035 (or 40339329033 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

It can be divided in two parts, 161357 and 316124, that added together give a square (477481 = 691²).

The spelling of 161357316124 in words is "one hundred sixty-one billion, three hundred fifty-seven million, three hundred sixteen thousand, one hundred twenty-four".