26531216601 has 16 divisors (see below), whose sum is σ = 35673538560. Its totient is φ = 17538402960.

The previous prime is 26531216533. The next prime is 26531216603. The reversal of 26531216601 is 10661213562.

It is not a de Polignac number, because 26531216601 - 2¹⁰ = 26531215577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26531216603) 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, 476256 + ... + 529038.

It is an arithmetic number, because the mean of its divisors is an integer number (2229596160).

Almost surely, 2^26531216601 is an apocalyptic number.

It is an amenable number.

26531216601 is a deficient number, since it is larger than the sum of its proper divisors (9142321959).

26531216601 is a wasteful number, since it uses less digits than its factorization.

26531216601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54196.

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 26531216601 in words is "twenty-six billion, five hundred thirty-one million, two hundred sixteen thousand, six hundred one".