26663616642130 has 32 divisors (see below), whose sum is σ = 51697126548144. Its totient is φ = 9842983643136.

The previous prime is 26663616642119. The next prime is 26663616642133. The reversal of 26663616642130 is 3124661636662.

It can be written as a sum of positive squares in 8 ways, for example, as 199969058041 + 26463647584089 = 447179^2 + 5144283^2 .

It is not an unprimeable number, because it can be changed into a prime (26663616642133) 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, 20663467 + ... + 21915886.

Almost surely, 2^{26663616642130} is an apocalyptic number.

26663616642130 is a deficient number, since it is larger than the sum of its proper divisors (25033509906014).

26663616642130 is a wasteful number, since it uses less digits than its factorization.

26663616642130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42584190.

The product of its (nonzero) digits is 6718464, while the sum is 52.

The spelling of 26663616642130 in words is "twenty-six trillion, six hundred sixty-three billion, six hundred sixteen million, six hundred forty-two thousand, one hundred thirty".