6465266610 has 128 divisors (see below), whose sum is σ = 18121190400. Its totient is φ = 1459595520.

The previous prime is 6465266579. The next prime is 6465266611. The reversal of 6465266610 is 166625646.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6465266611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 361192 + ... + 378668.

It is an arithmetic number, because the mean of its divisors is an integer number (141571800).

Almost surely, 2^6465266610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6465266610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9060595200).

6465266610 is an abundant number, since it is smaller than the sum of its proper divisors (11655923790).

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

6465266610 is a wasteful number, since it uses less digits than its factorization.

6465266610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17576.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 6465266610 is about 80406.8816084793. The cubic root of 6465266610 is about 1862.9254662729.

The spelling of 6465266610 in words is "six billion, four hundred sixty-five million, two hundred sixty-six thousand, six hundred ten".