64600533340 has 48 divisors (see below), whose sum is σ = 155226355200. Its totient is φ = 22122315072.

The previous prime is 64600533331. The next prime is 64600533353. The reversal of 64600533340 is 4333500646.

It is a junction number, because it is equal to n+sod(n) for n = 64600533296 and 64600533305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157530 + ... + 392449.

It is an arithmetic number, because the mean of its divisors is an integer number (3233882400).

Almost surely, 2^64600533340 is an apocalyptic number.

It is an amenable number.

64600533340 is an abundant number, since it is smaller than the sum of its proper divisors (90625821860).

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

64600533340 is a wasteful number, since it uses less digits than its factorization.

64600533340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550834 (or 550832 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 34.

The spelling of 64600533340 in words is "sixty-four billion, six hundred million, five hundred thirty-three thousand, three hundred forty".