161258883402 has 32 divisors (see below), whose sum is σ = 329223696192. Its totient is φ = 52644582144.

The previous prime is 161258883397. The next prime is 161258883419. The reversal of 161258883402 is 204388852161.

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, 1089823 + ... + 1228914.

It is an arithmetic number, because the mean of its divisors is an integer number (10288240506).

Almost surely, 2^161258883402 is an apocalyptic number.

161258883402 is an abundant number, since it is smaller than the sum of its proper divisors (167964812790).

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

161258883402 is a wasteful number, since it uses less digits than its factorization.

161258883402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318982.

The product of its (nonzero) digits is 737280, while the sum is 48.

The spelling of 161258883402 in words is "one hundred sixty-one billion, two hundred fifty-eight million, eight hundred eighty-three thousand, four hundred two".