64650360 has 64 divisors (see below), whose sum is σ = 196318080. Its totient is φ = 17029760.

The previous prime is 64650347. The next prime is 64650373. The reversal of 64650360 is 6305646.

It is an interprime number because it is at equal distance from previous prime (64650347) and next prime (64650373).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6715 + ... + 13205.

It is an arithmetic number, because the mean of its divisors is an integer number (3067470).

Almost surely, 2^64650360 is an apocalyptic number.

64650360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64650360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98159040).

64650360 is an abundant number, since it is smaller than the sum of its proper divisors (131667720).

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

64650360 is a wasteful number, since it uses less digits than its factorization.

64650360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6588 (or 6584 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 64650360 is about 8040.5447576641. The cubic root of 64650360 is about 401.3503529044.

The spelling of 64650360 in words is "sixty-four million, six hundred fifty thousand, three hundred sixty".