161122862123454 has 64 divisors (see below), whose sum is σ = 402667812956160. Its totient is φ = 41755624266720.

The previous prime is 161122862123423. The next prime is 161122862123477. The reversal of 161122862123454 is 454321268221161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393419244 + ... + 393828575.

It is an arithmetic number, because the mean of its divisors is an integer number (6291684577440).

Almost surely, 2^{161122862123454} is an apocalyptic number.

161122862123454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161122862123454 is an abundant number, since it is smaller than the sum of its proper divisors (241544950832706).

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

161122862123454 is a wasteful number, since it uses less digits than its factorization.

161122862123454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787248285.

The product of its digits is 1105920, while the sum is 48.

The spelling of 161122862123454 in words is "one hundred sixty-one trillion, one hundred twenty-two billion, eight hundred sixty-two million, one hundred twenty-three thousand, four hundred fifty-four".