161465456 has 30 divisors (see below), whose sum is σ = 332333640. Its totient is φ = 75981568.

The previous prime is 161465449. The next prime is 161465459. The reversal of 161465456 is 654564161.

It is a happy number.

161465456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161465459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12836 + ... + 22083.

It is an arithmetic number, because the mean of its divisors is an integer number (11077788).

Almost surely, 2^161465456 is an apocalyptic number.

161465456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

161465456 is an abundant number, since it is smaller than the sum of its proper divisors (170868184).

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

161465456 is a wasteful number, since it uses less digits than its factorization.

161465456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34961 (or 34938 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 161465456 is about 12706.9058389523. The cubic root of 161465456 is about 544.5359301799.

The spelling of 161465456 in words is "one hundred sixty-one million, four hundred sixty-five thousand, four hundred fifty-six".