6385220070 has 64 divisors (see below), whose sum is σ = 15695057664. Its totient is φ = 1661627520.

The previous prime is 6385220069. The next prime is 6385220099. The reversal of 6385220070 is 700225836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2647165 + ... + 2649575.

It is an arithmetic number, because the mean of its divisors is an integer number (245235276).

Almost surely, 2^6385220070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6385220070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7847528832).

6385220070 is an abundant number, since it is smaller than the sum of its proper divisors (9309837594).

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

6385220070 is a wasteful number, since it uses less digits than its factorization.

6385220070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4517.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 6385220070 is about 79907.5720442062. The cubic root of 6385220070 is about 1855.2052160455.

The spelling of 6385220070 in words is "six billion, three hundred eighty-five million, two hundred twenty thousand, seventy".