161102249124 has 24 divisors (see below), whose sum is σ = 377292359808. Its totient is φ = 53502590880.

The previous prime is 161102249111. The next prime is 161102249149. The reversal of 161102249124 is 421942201161.

It is a super-2 number, since 2×161102249124² (a number of 23 digits) contains 22 as substring.

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, 24766467 + ... + 24772970.

It is an arithmetic number, because the mean of its divisors is an integer number (15720514992).

Almost surely, 2^161102249124 is an apocalyptic number.

It is an amenable number.

161102249124 is an abundant number, since it is smaller than the sum of its proper divisors (216190110684).

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

161102249124 is a wasteful number, since it uses less digits than its factorization.

161102249124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49539715 (or 49539713 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 161102249124 in words is "one hundred sixty-one billion, one hundred two million, two hundred forty-nine thousand, one hundred twenty-four".