6466271312 has 20 divisors (see below), whose sum is σ = 12530665620. Its totient is φ = 3232551168.

The previous prime is 6466271291. The next prime is 6466271333. The reversal of 6466271312 is 2131726646.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6466271291) and next prime (6466271333).

It can be written as a sum of positive squares in 2 ways, for example, as 2911249936 + 3555021376 = 53956^2 + 59624^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62948 + ... + 129980.

It is an arithmetic number, because the mean of its divisors is an integer number (626533281).

Almost surely, 2^6466271312 is an apocalyptic number.

It is an amenable number.

6466271312 is a deficient number, since it is larger than the sum of its proper divisors (6064394308).

6466271312 is a wasteful number, since it uses less digits than its factorization.

6466271312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73070 (or 73064 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 6466271312 is about 80413.1289777981. The cubic root of 6466271312 is about 1863.0219607724.

Adding to 6466271312 its reverse (2131726646), we get a palindrome (8597997958).

The spelling of 6466271312 in words is "six billion, four hundred sixty-six million, two hundred seventy-one thousand, three hundred twelve".