161156606050560 has 576 divisors, whose sum is σ = 566238510673920. Its totient is φ = 38881134673920.

The previous prime is 161156606050519. The next prime is 161156606050577. The reversal of 161156606050560 is 65050606651161.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1058792382 + ... + 1058944578.

It is an arithmetic number, because the mean of its divisors is an integer number (983052969920).

Almost surely, 2^{161156606050560} is an apocalyptic number.

161156606050560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161156606050560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283119255336960).

161156606050560 is an abundant number, since it is smaller than the sum of its proper divisors (405081904623360).

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

161156606050560 is a wasteful number, since it uses less digits than its factorization.

161156606050560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152894 (or 152880 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 161156606050560 in words is "one hundred sixty-one trillion, one hundred fifty-six billion, six hundred six million, fifty thousand, five hundred sixty".