64930170240 has 1280 divisors, whose sum is σ = 268719897600. Its totient is φ = 14817116160.

The previous prime is 64930170161. The next prime is 64930170269. The reversal of 64930170240 is 4207103946.

64930170240 is a `hidden beast` number, since 6 + 49 + 301 + 70 + 240 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 64930170195 and 64930170204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 914509405 + ... + 914509475.

It is an arithmetic number, because the mean of its divisors is an integer number (209937420).

Almost surely, 2^64930170240 is an apocalyptic number.

64930170240 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 64930170240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134359948800).

64930170240 is an abundant number, since it is smaller than the sum of its proper divisors (203789727360).

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

64930170240 is a wasteful number, since it uses less digits than its factorization.

64930170240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 64930170240 in words is "sixty-four billion, nine hundred thirty million, one hundred seventy thousand, two hundred forty".