6455665210512 has 160 divisors (see below), whose sum is σ = 19366600458240. Its totient is φ = 1814999316480.

The previous prime is 6455665210459. The next prime is 6455665210513. The reversal of 6455665210512 is 2150125665546.

It is a super-2 number, since 2×6455665210512² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (6455665210513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4665937 + ... + 5889167.

It is an arithmetic number, because the mean of its divisors is an integer number (121041252864).

Almost surely, 2^{6455665210512} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6455665210512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9683300229120).

6455665210512 is an abundant number, since it is smaller than the sum of its proper divisors (12910935247728).

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

6455665210512 is a wasteful number, since it uses less digits than its factorization.

6455665210512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223501 (or 1223495 counting only the distinct ones).

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 6455665210512 in words is "six trillion, four hundred fifty-five billion, six hundred sixty-five million, two hundred ten thousand, five hundred twelve".