161517060124 has 24 divisors (see below), whose sum is σ = 323077345920. Its totient is φ = 69212334576.

The previous prime is 161517060121. The next prime is 161517060127. The reversal of 161517060124 is 421060715161.

It is an interprime number because it is at equal distance from previous prime (161517060121) and next prime (161517060127).

It is a super-2 number, since 2×161517060124² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161517060124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161517060121) 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, 170854 + ... + 593485.

It is an arithmetic number, because the mean of its divisors is an integer number (13461556080).

Almost surely, 2^161517060124 is an apocalyptic number.

161517060124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161517060124 is an abundant number, since it is smaller than the sum of its proper divisors (161560285796).

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

161517060124 is a wasteful number, since it uses less digits than its factorization.

161517060124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771897 (or 771895 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 161517060124 its reverse (421060715161), we get a palindrome (582577775285).

The spelling of 161517060124 in words is "one hundred sixty-one billion, five hundred seventeen million, sixty thousand, one hundred twenty-four".