161754408846 has 12 divisors (see below), whose sum is σ = 350467885872. Its totient is φ = 53918136276.

The previous prime is 161754408839. The next prime is 161754408847. The reversal of 161754408846 is 648804457161.

161754408846 is a `hidden beast` number, since 1 + 6 + 17 + 544 + 0 + 8 + 84 + 6 = 666.

It is a super-2 number, since 2×161754408846² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161754408792 and 161754408801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161754408847) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4493178006 + ... + 4493178041.

It is an arithmetic number, because the mean of its divisors is an integer number (29205657156).

Almost surely, 2^161754408846 is an apocalyptic number.

161754408846 is an abundant number, since it is smaller than the sum of its proper divisors (188713477026).

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

161754408846 is a wasteful number, since it uses less digits than its factorization.

161754408846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8986356055 (or 8986356052 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 161754408846 in words is "one hundred sixty-one billion, seven hundred fifty-four million, four hundred eight thousand, eight hundred forty-six".