161602350668 has 48 divisors (see below), whose sum is σ = 322001477280. Its totient is φ = 70311820800.

The previous prime is 161602350653. The next prime is 161602350719. The reversal of 161602350668 is 866053206161.

It is a super-2 number, since 2×161602350668² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749483 + ... + 940706.

It is an arithmetic number, because the mean of its divisors is an integer number (6708364110).

Almost surely, 2^161602350668 is an apocalyptic number.

It is an amenable number.

161602350668 is a deficient number, since it is larger than the sum of its proper divisors (160399126612).

161602350668 is a wasteful number, since it uses less digits than its factorization.

161602350668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690298 (or 1690296 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 161602350668 in words is "one hundred sixty-one billion, six hundred two million, three hundred fifty thousand, six hundred sixty-eight".