26145262204666 has 12 divisors (see below), whose sum is σ = 43107271156026. Its totient is φ = 11884210092920.

The previous prime is 26145262204661. The next prime is 26145262204673. The reversal of 26145262204666 is 66640226254162.

It can be written as a sum of positive squares in only one way, i.e., 18667886803225 + 7477375401441 = 4320635^2 + 2734479^2 .

It is not an unprimeable number, because it can be changed into a prime (26145262204661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 54019136545 + ... + 54019137028.

Almost surely, 2^{26145262204666} is an apocalyptic number.

26145262204666 is a deficient number, since it is larger than the sum of its proper divisors (16962008951360).

26145262204666 is a wasteful number, since it uses less digits than its factorization.

26145262204666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108038273597 (or 108038273586 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 26145262204666 in words is "twenty-six trillion, one hundred forty-five billion, two hundred sixty-two million, two hundred four thousand, six hundred sixty-six".