64174533340 has 24 divisors (see below), whose sum is σ = 134771409360. Its totient is φ = 25668882048.

The previous prime is 64174533337. The next prime is 64174533377. The reversal of 64174533340 is 4333547146.

It is a junction number, because it is equal to n+sod(n) for n = 64174533293 and 64174533302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860584 + ... + 932176.

It is an arithmetic number, because the mean of its divisors is an integer number (5615475390).

Almost surely, 2^64174533340 is an apocalyptic number.

It is an amenable number.

64174533340 is an abundant number, since it is smaller than the sum of its proper divisors (70596876020).

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

64174533340 is a wasteful number, since it uses less digits than its factorization.

64174533340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116421 (or 116419 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 64174533340 in words is "sixty-four billion, one hundred seventy-four million, five hundred thirty-three thousand, three hundred forty".