26056062666 has 20 divisors (see below), whose sum is σ = 58384881522. Its totient is φ = 8685354168.

The previous prime is 26056062653. The next prime is 26056062689. The reversal of 26056062666 is 66626065062.

It can be written as a sum of positive squares in only one way, i.e., 24470032041 + 1586030625 = 156429^2 + 39825^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 80419785 + ... + 80420108.

Almost surely, 2^26056062666 is an apocalyptic number.

26056062666 is an abundant number, since it is smaller than the sum of its proper divisors (32328818856).

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

26056062666 is a wasteful number, since it uses less digits than its factorization.

26056062666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160839907 (or 160839898 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 45.

The spelling of 26056062666 in words is "twenty-six billion, fifty-six million, sixty-two thousand, six hundred sixty-six".