64487016000 has 1120 divisors, whose sum is σ = 265807301760. Its totient is φ = 15303168000.

The previous prime is 64487015959. The next prime is 64487016047. The reversal of 64487016000 is 61078446.

64487016000 is a `hidden beast` number, since 6 + 4 + 48 + 7 + 0 + 1 + 600 + 0 = 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 159 ways as a sum of consecutive naturals, for example, 591623946 + ... + 591624054.

It is an arithmetic number, because the mean of its divisors is an integer number (237327948).

Almost surely, 2^64487016000 is an apocalyptic number.

64487016000 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 64487016000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132903650880).

64487016000 is an abundant number, since it is smaller than the sum of its proper divisors (201320285760).

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

64487016000 is a wasteful number, since it uses less digits than its factorization.

64487016000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 64487016000 in words is "sixty-four billion, four hundred eighty-seven million, sixteen thousand".