161238360942 has 32 divisors (see below), whose sum is σ = 358387404960. Its totient is φ = 53734129920.

The previous prime is 161238360923. The next prime is 161238360971. The reversal of 161238360942 is 249063832161.

161238360942 is a `hidden beast` number, since 1 + 6 + 1 + 2 + 38 + 3 + 609 + 4 + 2 = 666.

161238360942 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161238360942² (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 15 ways as a sum of consecutive naturals, for example, 87109 + ... + 574512.

It is an arithmetic number, because the mean of its divisors is an integer number (11199606405).

Almost surely, 2^161238360942 is an apocalyptic number.

161238360942 is an abundant number, since it is smaller than the sum of its proper divisors (197149044018).

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

161238360942 is a wasteful number, since it uses less digits than its factorization.

161238360942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666145 (or 666139 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 161238360942 in words is "one hundred sixty-one billion, two hundred thirty-eight million, three hundred sixty thousand, nine hundred forty-two".