161624008 has 32 divisors (see below), whose sum is σ = 372980160. Its totient is φ = 63938880.

The previous prime is 161624003. The next prime is 161624063. The reversal of 161624008 is 800426161.

It is a super-2 number, since 2×161624008² = 52244639923968128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (161624003) by changing a digit.

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, 110278 + ... + 111733.

It is an arithmetic number, because the mean of its divisors is an integer number (11655630).

Almost surely, 2^161624008 is an apocalyptic number.

It is an amenable number.

161624008 is an abundant number, since it is smaller than the sum of its proper divisors (211356152).

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

161624008 is a wasteful number, since it uses less digits than its factorization.

161624008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222037 (or 222033 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 161624008 is about 12713.1431204089. The cubic root of 161624008 is about 544.7141086761.

The spelling of 161624008 in words is "one hundred sixty-one million, six hundred twenty-four thousand, eight".