161588480 has 36 divisors (see below), whose sum is σ = 387057972. Its totient is φ = 64634880.

The previous prime is 161588477. The next prime is 161588507. The reversal of 161588480 is 84885161.

It can be written as a sum of positive squares in 2 ways, for example, as 29246464 + 132342016 = 5408^2 + 11504^2 .

It is a super-2 number, since 2×161588480² = 52221673737420800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61841 + ... + 64400.

Almost surely, 2^161588480 is an apocalyptic number.

161588480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161588480 is an abundant number, since it is smaller than the sum of its proper divisors (225469492).

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

161588480 is an equidigital number, since it uses as much as digits as its factorization.

161588480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126262 (or 126248 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 161588480 is about 12711.7457495027. The cubic root of 161588480 is about 544.6741929455.

The spelling of 161588480 in words is "one hundred sixty-one million, five hundred eighty-eight thousand, four hundred eighty".