64601446530 has 128 divisors (see below), whose sum is σ = 171108827136. Its totient is φ = 15537945600.

The previous prime is 64601446493. The next prime is 64601446543. The reversal of 64601446530 is 3564410646.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1608595 + ... + 1648265.

It is an arithmetic number, because the mean of its divisors is an integer number (1336787712).

Almost surely, 2^64601446530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64601446530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85554413568).

64601446530 is an abundant number, since it is smaller than the sum of its proper divisors (106507380606).

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

64601446530 is a wasteful number, since it uses less digits than its factorization.

64601446530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39832.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 64601446530 in words is "sixty-four billion, six hundred one million, four hundred forty-six thousand, five hundred thirty".