64314121560 has 128 divisors (see below), whose sum is σ = 208613180160. Its totient is φ = 15768000000.

The previous prime is 64314121559. The next prime is 64314121561. The reversal of 64314121560 is 6512141346.

It is an interprime number because it is at equal distance from previous prime (64314121559) and next prime (64314121561).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64314121561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309435 + ... + 473685.

It is an arithmetic number, because the mean of its divisors is an integer number (1629790470).

Almost surely, 2^64314121560 is an apocalyptic number.

64314121560 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 64314121560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104306590080).

64314121560 is an abundant number, since it is smaller than the sum of its proper divisors (144299058600).

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

64314121560 is a wasteful number, since it uses less digits than its factorization.

64314121560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164529 (or 164525 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 64314121560 in words is "sixty-four billion, three hundred fourteen million, one hundred twenty-one thousand, five hundred sixty".