26275566664 has 16 divisors (see below), whose sum is σ = 49272476400. Its totient is φ = 13136239632.

The previous prime is 26275566661. The next prime is 26275566731. The reversal of 26275566664 is 46666557262.

It is not an unprimeable number, because it can be changed into a prime (26275566661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118954 + ... + 258265.

It is an arithmetic number, because the mean of its divisors is an integer number (3079529775).

Almost surely, 2^26275566664 is an apocalyptic number.

It is an amenable number.

26275566664 is a deficient number, since it is larger than the sum of its proper divisors (22996909736).

26275566664 is a wasteful number, since it uses less digits than its factorization.

26275566664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385932 (or 385928 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 55.

The spelling of 26275566664 in words is "twenty-six billion, two hundred seventy-five million, five hundred sixty-six thousand, six hundred sixty-four".