64676180 has 12 divisors (see below), whose sum is σ = 135820020. Its totient is φ = 25870464.

The previous prime is 64676179. The next prime is 64676189. The reversal of 64676180 is 8167646.

It can be written as a sum of positive squares in 2 ways, for example, as 10329796 + 54346384 = 3214^2 + 7372^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64676189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616885 + ... + 1616924.

It is an arithmetic number, because the mean of its divisors is an integer number (11318335).

Almost surely, 2^64676180 is an apocalyptic number.

It is an amenable number.

64676180 is an abundant number, since it is smaller than the sum of its proper divisors (71143840).

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

64676180 is a wasteful number, since it uses less digits than its factorization.

64676180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233818 (or 3233816 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 64676180 is about 8042.1502099874. The cubic root of 64676180 is about 401.4037761019.

The spelling of 64676180 in words is "sixty-four million, six hundred seventy-six thousand, one hundred eighty".