6445275433170 has 384 divisors, whose sum is σ = 19337033753856. Its totient is φ = 1365896577024.

The previous prime is 6445275433159. The next prime is 6445275433211. The reversal of 6445275433170 is 713345725446.

It is a super-2 number, since 2×6445275433170² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2037708009 + ... + 2037711171.

It is an arithmetic number, because the mean of its divisors is an integer number (50356858734).

Almost surely, 2^{6445275433170} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6445275433170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9668516876928).

6445275433170 is an abundant number, since it is smaller than the sum of its proper divisors (12891758320686).

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

6445275433170 is a wasteful number, since it uses less digits than its factorization.

6445275433170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394 (or 4387 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 51.

The spelling of 6445275433170 in words is "six trillion, four hundred forty-five billion, two hundred seventy-five million, four hundred thirty-three thousand, one hundred seventy".