26361461666 has 4 divisors (see below), whose sum is σ = 39542192502. Its totient is φ = 13180730832.

The previous prime is 26361461629. The next prime is 26361461681. The reversal of 26361461666 is 66616416362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16485276025 + 9876185641 = 128395^2 + 99379^2 .

It is a super-2 number, since 2×26361461666² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26361461666.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590365415 + ... + 6590365418.

Almost surely, 2^26361461666 is an apocalyptic number.

26361461666 is a deficient number, since it is larger than the sum of its proper divisors (13180730836).

26361461666 is a wasteful number, since it uses less digits than its factorization.

26361461666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13180730835.

The product of its digits is 1119744, while the sum is 47.

The spelling of 26361461666 in words is "twenty-six billion, three hundred sixty-one million, four hundred sixty-one thousand, six hundred sixty-six".