161151898835 has 16 divisors (see below), whose sum is σ = 197936784000. Its totient is φ = 125897404416.

The previous prime is 161151898781. The next prime is 161151898847. The reversal of 161151898835 is 538898151161.

161151898835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161151898835 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658130 + ... + 869159.

It is an arithmetic number, because the mean of its divisors is an integer number (12371049000).

Almost surely, 2^161151898835 is an apocalyptic number.

161151898835 is a deficient number, since it is larger than the sum of its proper divisors (36784885165).

161151898835 is a wasteful number, since it uses less digits than its factorization.

161151898835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527790.

The product of its digits is 2073600, while the sum is 56.

The spelling of 161151898835 in words is "one hundred sixty-one billion, one hundred fifty-one million, eight hundred ninety-eight thousand, eight hundred thirty-five".