64823501016 has 160 divisors (see below), whose sum is σ = 184129426800. Its totient is φ = 21304166400.

The previous prime is 64823500999. The next prime is 64823501087. The reversal of 64823501016 is 61010532846.

It is a happy number.

64823501016 is a `hidden beast` number, since 64 + 82 + 3 + 501 + 0 + 16 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 23125071 + ... + 23127873.

Almost surely, 2^64823501016 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64823501016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92064713400).

64823501016 is an abundant number, since it is smaller than the sum of its proper divisors (119305925784).

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

64823501016 is a wasteful number, since it uses less digits than its factorization.

64823501016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311 (or 3298 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 64823501016 in words is "sixty-four billion, eight hundred twenty-three million, five hundred one thousand, sixteen".