161057112150 has 48 divisors (see below), whose sum is σ = 435732700608. Its totient is φ = 39044148000.

The previous prime is 161057112113. The next prime is 161057112163. The reversal of 161057112150 is 51211750161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 48803536 + ... + 48806835.

It is an arithmetic number, because the mean of its divisors is an integer number (9077764596).

Almost surely, 2^161057112150 is an apocalyptic number.

161057112150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161057112150 is an abundant number, since it is smaller than the sum of its proper divisors (274675588458).

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

161057112150 is a wasteful number, since it uses less digits than its factorization.

161057112150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97610397 (or 97610392 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 30.

The spelling of 161057112150 in words is "one hundred sixty-one billion, fifty-seven million, one hundred twelve thousand, one hundred fifty".