64310678016 has 160 divisors (see below), whose sum is σ = 187038445440. Its totient is φ = 19516391424.

The previous prime is 64310678011. The next prime is 64310678041. The reversal of 64310678016 is 61087601346.

It is not an unprimeable number, because it can be changed into a prime (64310678011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1435605 + ... + 1479723.

It is an arithmetic number, because the mean of its divisors is an integer number (1168990284).

Almost surely, 2^64310678016 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 64310678016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93519222720).

64310678016 is an abundant number, since it is smaller than the sum of its proper divisors (122727767424).

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

64310678016 is a wasteful number, since it uses less digits than its factorization.

64310678016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44226 (or 44210 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 64310678016 in words is "sixty-four billion, three hundred ten million, six hundred seventy-eight thousand, sixteen".