64418680 has 16 divisors (see below), whose sum is σ = 144942120. Its totient is φ = 25767456.

The previous prime is 64418677. The next prime is 64418681. The reversal of 64418680 is 8681446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64418681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805194 + ... + 805273.

Almost surely, 2^64418680 is an apocalyptic number.

It is an amenable number.

64418680 is an abundant number, since it is smaller than the sum of its proper divisors (80523440).

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

64418680 is a wasteful number, since it uses less digits than its factorization.

64418680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610478 (or 1610474 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 64418680 is about 8026.1248432852. The cubic root of 64418680 is about 400.8703548326.

The spelling of 64418680 in words is "sixty-four million, four hundred eighteen thousand, six hundred eighty".