161459201860 has 24 divisors (see below), whose sum is σ = 369888353856. Its totient is φ = 58712436960.

The previous prime is 161459201843. The next prime is 161459201899. The reversal of 161459201860 is 68102954161.

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, 366952512 + ... + 366952951.

It is an arithmetic number, because the mean of its divisors is an integer number (15412014744).

Almost surely, 2^161459201860 is an apocalyptic number.

161459201860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161459201860 is an abundant number, since it is smaller than the sum of its proper divisors (208429151996).

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

161459201860 is a wasteful number, since it uses less digits than its factorization.

161459201860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733905483 (or 733905481 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 161459201860 in words is "one hundred sixty-one billion, four hundred fifty-nine million, two hundred one thousand, eight hundred sixty".