161464455 has 16 divisors (see below), whose sum is σ = 287048160. Its totient is φ = 86114304.

The previous prime is 161464409. The next prime is 161464463. The reversal of 161464455 is 554464161.

161464455 is a `hidden beast` number, since 1 + 6 + 1 + 4 + 644 + 5 + 5 = 666.

161464455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161464455 - 2⁷ = 161464327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597882 + ... + 598151.

It is an arithmetic number, because the mean of its divisors is an integer number (17940510).

Almost surely, 2^161464455 is an apocalyptic number.

161464455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161464455 is a deficient number, since it is larger than the sum of its proper divisors (125583705).

161464455 is a wasteful number, since it uses less digits than its factorization.

161464455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196047 (or 1196041 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 161464455 is about 12706.8664508603. The cubic root of 161464455 is about 544.5348048998.

The spelling of 161464455 in words is "one hundred sixty-one million, four hundred sixty-four thousand, four hundred fifty-five".