161418264 has 64 divisors (see below), whose sum is σ = 488332800. Its totient is φ = 43405824.

The previous prime is 161418241. The next prime is 161418269. The reversal of 161418264 is 462814161.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161418269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25404 + ... + 31115.

It is an arithmetic number, because the mean of its divisors is an integer number (7630200).

Almost surely, 2^161418264 is an apocalyptic number.

161418264 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161418264 is an abundant number, since it is smaller than the sum of its proper divisors (326914536).

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

161418264 is a wasteful number, since it uses less digits than its factorization.

161418264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56552 (or 56548 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 161418264 is about 12705.0487602370. The cubic root of 161418264 is about 544.4828739530.

The spelling of 161418264 in words is "one hundred sixty-one million, four hundred eighteen thousand, two hundred sixty-four".