64161360 has 60 divisors (see below), whose sum is σ = 215477652. Its totient is φ = 17109504.

The previous prime is 64161359. The next prime is 64161389. The reversal of 64161360 is 6316146.

64161360 is a `hidden beast` number, since 6 + 41 + 613 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25522704 + 38638656 = 5052^2 + 6216^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-4 number, since 4×64161360⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43837 + ... + 45276.

Almost surely, 2^64161360 is an apocalyptic number.

64161360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64161360 is an abundant number, since it is smaller than the sum of its proper divisors (151316292).

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

64161360 is a wasteful number, since it uses less digits than its factorization.

64161360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89132 (or 89123 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 64161360 is about 8010.0786512992. The cubic root of 64161360 is about 400.3358845417.

It can be divided in two parts, 6416 and 1360, that added together give a 5-th power (7776 = 6⁵).

The spelling of 64161360 in words is "sixty-four million, one hundred sixty-one thousand, three hundred sixty".