161365168355662 has 16 divisors (see below), whose sum is σ = 243453528143280. Its totient is φ = 80214017808832.

The previous prime is 161365168355659. The next prime is 161365168355701. The reversal of 161365168355662 is 266553861563161.

It is a super-2 number, since 2×161365168355662² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161365168355594 and 161365168355603.

It is a congruent number.

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, 6335514 + ... + 19049122.

It is an arithmetic number, because the mean of its divisors is an integer number (15215845508955).

Almost surely, 2^{161365168355662} is an apocalyptic number.

161365168355662 is a deficient number, since it is larger than the sum of its proper divisors (82088359787618).

161365168355662 is a wasteful number, since it uses less digits than its factorization.

161365168355662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750467.

The product of its digits is 139968000, while the sum is 64.

The spelling of 161365168355662 in words is "one hundred sixty-one trillion, three hundred sixty-five billion, one hundred sixty-eight million, three hundred fifty-five thousand, six hundred sixty-two".