161182730243770 has 16 divisors (see below), whose sum is σ = 291908846432160. Its totient is φ = 64077551654544.

The previous prime is 161182730243753. The next prime is 161182730243797. The reversal of 161182730243770 is 77342037281161.

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, 49442553660 + ... + 49442556919.

It is an arithmetic number, because the mean of its divisors is an integer number (18244302902010).

Almost surely, 2^{161182730243770} is an apocalyptic number.

161182730243770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161182730243770 is a deficient number, since it is larger than the sum of its proper divisors (130726116188390).

161182730243770 is a wasteful number, since it uses less digits than its factorization.

161182730243770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98885110749.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 161182730243770 in words is "one hundred sixty-one trillion, one hundred eighty-two billion, seven hundred thirty million, two hundred forty-three thousand, seven hundred seventy".