161114999990 has 16 divisors (see below), whose sum is σ = 331436571552. Its totient is φ = 55239428544.

The previous prime is 161114999971. The next prime is 161114999999. The reversal of 161114999990 is 99999411161.

161114999990 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161114999999) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1150821359 + ... + 1150821498.

It is an arithmetic number, because the mean of its divisors is an integer number (20714785722).

Almost surely, 2^161114999990 is an apocalyptic number.

161114999990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161114999990 is an abundant number, since it is smaller than the sum of its proper divisors (170321571562).

161114999990 is a wasteful number, since it uses less digits than its factorization.

161114999990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301642871.

The product of its (nonzero) digits is 1417176, while the sum is 59.

The spelling of 161114999990 in words is "one hundred sixty-one billion, one hundred fourteen million, nine hundred ninety-nine thousand, nine hundred ninety".