26516603253 has 16 divisors (see below), whose sum is σ = 40408555520. Its totient is φ = 15151481136.

The previous prime is 26516603249. The next prime is 26516603263. The reversal of 26516603253 is 35230661562.

It is not a de Polignac number, because 26516603253 - 2² = 26516603249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26516603263) 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, 615876 + ... + 657522.

It is an arithmetic number, because the mean of its divisors is an integer number (2525534720).

Almost surely, 2^26516603253 is an apocalyptic number.

It is an amenable number.

26516603253 is a deficient number, since it is larger than the sum of its proper divisors (13891952267).

26516603253 is a wasteful number, since it uses less digits than its factorization.

26516603253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71976.

The product of its (nonzero) digits is 194400, while the sum is 39.

The spelling of 26516603253 in words is "twenty-six billion, five hundred sixteen million, six hundred three thousand, two hundred fifty-three".