16161456 has 40 divisors (see below), whose sum is σ = 43568640. Its totient is φ = 5152576.

The previous prime is 16161437. The next prime is 16161463. The reversal of 16161456 is 65416161.

It is a super-2 number, since 2×16161456² = 522385320079872, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6216 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1089216).

Almost surely, 2^16161456 is an apocalyptic number.

16161456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16161456 is an abundant number, since it is smaller than the sum of its proper divisors (27407184).

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

16161456 is a wasteful number, since it uses less digits than its factorization.

16161456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14673 (or 14667 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 16161456 is about 4020.1313411380. The cubic root of 16161456 is about 252.8289657298.

The spelling of 16161456 in words is "sixteen million, one hundred sixty-one thousand, four hundred fifty-six".