161246155254 has 32 divisors (see below), whose sum is σ = 323713291104. Its totient is φ = 53545309440.

The previous prime is 161246155207. The next prime is 161246155261. The reversal of 161246155254 is 452551642161.

It is a happy number.

161246155254 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10399932 + ... + 10415424.

It is an arithmetic number, because the mean of its divisors is an integer number (10116040347).

Almost surely, 2^161246155254 is an apocalyptic number.

161246155254 is an abundant number, since it is smaller than the sum of its proper divisors (162467135850).

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

161246155254 is a wasteful number, since it uses less digits than its factorization.

161246155254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21952.

The product of its digits is 288000, while the sum is 42.

The spelling of 161246155254 in words is "one hundred sixty-one billion, two hundred forty-six million, one hundred fifty-five thousand, two hundred fifty-four".