26240053665 has 16 divisors (see below), whose sum is σ = 47981812608. Its totient is φ = 11995453056.

The previous prime is 26240053663. The next prime is 26240053681. The reversal of 26240053665 is 56635004262.

It is not a de Polignac number, because 26240053665 - 2¹ = 26240053663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26240053663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124952532 + ... + 124952741.

It is an arithmetic number, because the mean of its divisors is an integer number (2998863288).

Almost surely, 2^26240053665 is an apocalyptic number.

It is an amenable number.

26240053665 is a deficient number, since it is larger than the sum of its proper divisors (21741758943).

26240053665 is a wasteful number, since it uses less digits than its factorization.

26240053665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249905288.

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 26240053665 in words is "twenty-six billion, two hundred forty million, fifty-three thousand, six hundred sixty-five".