161656363586000 has 160 divisors (see below), whose sum is σ = 427229244149760. Its totient is φ = 58895676672000.

The previous prime is 161656363585889. The next prime is 161656363586023. The reversal of 161656363586000 is 685363656161.

It is a super-2 number, since 2×161656363586000² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75633080 + ... + 77741079.

It is an arithmetic number, because the mean of its divisors is an integer number (2670182775936).

Almost surely, 2^{161656363586000} is an apocalyptic number.

161656363586000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161656363586000 is an abundant number, since it is smaller than the sum of its proper divisors (265572880563760).

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

161656363586000 is a wasteful number, since it uses less digits than its factorization.

161656363586000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153374230 (or 153374214 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 56.

The spelling of 161656363586000 in words is "one hundred sixty-one trillion, six hundred fifty-six billion, three hundred sixty-three million, five hundred eighty-six thousand".