161614464 has 64 divisors (see below), whose sum is σ = 468326880. Its totient is φ = 48972800.

The previous prime is 161614463. The next prime is 161614469. The reversal of 161614464 is 464416161.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×161614464² = 52238469948014592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

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

It is not an unprimeable number, because it can be changed into a prime (161614463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14907 + ... + 23354.

Almost surely, 2^161614464 is an apocalyptic number.

It is an amenable number.

161614464 is an abundant number, since it is smaller than the sum of its proper divisors (306712416).

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

161614464 is a wasteful number, since it uses less digits than its factorization.

161614464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38289 (or 38277 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 161614464 is about 12712.7677552923. The cubic root of 161614464 is about 544.7033865607.

The spelling of 161614464 in words is "one hundred sixty-one million, six hundred fourteen thousand, four hundred sixty-four".