6266664064 has 16 divisors (see below), whose sum is σ = 12484370070. Its totient is φ = 3133331968.

The previous prime is 6266664031. The next prime is 6266664071. The reversal of 6266664064 is 4604666626.

It can be written as a sum of positive squares in only one way, i.e., 6253646400 + 13017664 = 79080^2 + 3608^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24479029 + ... + 24479284.

Almost surely, 2^6266664064 is an apocalyptic number.

6266664064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6266664064 is a deficient number, since it is larger than the sum of its proper divisors (6217706006).

6266664064 is an equidigital number, since it uses as much as digits as its factorization.

6266664064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48958327 (or 48958315 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 46.

The square root of 6266664064 is about 79162.2641414456. The cubic root of 6266664064 is about 1843.6513881508.

The spelling of 6266664064 in words is "six billion, two hundred sixty-six million, six hundred sixty-four thousand, sixty-four".