161440050 has 48 divisors (see below), whose sum is σ = 401527872. Its totient is φ = 42926400.

The previous prime is 161440031. The next prime is 161440073. The reversal of 161440050 is 50044161.

161440050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 161439999 and 161440026.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58195 + ... + 60905.

It is an arithmetic number, because the mean of its divisors is an integer number (8365164).

Almost surely, 2^161440050 is an apocalyptic number.

161440050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161440050 is an abundant number, since it is smaller than the sum of its proper divisors (240087822).

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

161440050 is a wasteful number, since it uses less digits than its factorization.

161440050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 161440050 is about 12705.9061070039. The cubic root of 161440050 is about 544.5073684350.

The spelling of 161440050 in words is "one hundred sixty-one million, four hundred forty thousand, fifty".