64550332080 has 400 divisors, whose sum is σ = 249773388480. Its totient is φ = 15340824576.

The previous prime is 64550332061. The next prime is 64550332129. The reversal of 64550332080 is 8023305546.

It is a happy number.

64550332080 is a `hidden beast` number, since 6 + 4 + 550 + 3 + 3 + 20 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2429749 + ... + 2456171.

Almost surely, 2^64550332080 is an apocalyptic number.

64550332080 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 64550332080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124886694240).

64550332080 is an abundant number, since it is smaller than the sum of its proper divisors (185223056400).

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

64550332080 is a wasteful number, since it uses less digits than its factorization.

64550332080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26490 (or 26475 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 64550332080 in words is "sixty-four billion, five hundred fifty million, three hundred thirty-two thousand, eighty".