161840837034076 has 12 divisors (see below), whose sum is σ = 290129305415040. Its totient is φ = 78946749772640.

The previous prime is 161840837034011. The next prime is 161840837034077. The reversal of 161840837034076 is 670430738048161.

It is a self number, because there is not a number n which added to its sum of digits gives 161840837034076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161840837034077) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 493417185916 + ... + 493417186243.

It is an arithmetic number, because the mean of its divisors is an integer number (24177442117920).

Almost surely, 2^{161840837034076} is an apocalyptic number.

It is an amenable number.

161840837034076 is a deficient number, since it is larger than the sum of its proper divisors (128288468380964).

161840837034076 is a wasteful number, since it uses less digits than its factorization.

161840837034076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986834372204 (or 986834372202 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 161840837034076 in words is "one hundred sixty-one trillion, eight hundred forty billion, eight hundred thirty-seven million, thirty-four thousand, seventy-six".