26600664442 has 24 divisors (see below), whose sum is σ = 43867158048. Its totient is φ = 12088719720.

The previous prime is 26600664427. The next prime is 26600664443. The reversal of 26600664442 is 24446600662.

It is a junction number, because it is equal to n+sod(n) for n = 26600664395 and 26600664404.

It is not an unprimeable number, because it can be changed into a prime (26600664443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1696603 + ... + 1712209.

It is an arithmetic number, because the mean of its divisors is an integer number (1827798252).

Almost surely, 2^26600664442 is an apocalyptic number.

26600664442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26600664442 is a deficient number, since it is larger than the sum of its proper divisors (17266493606).

26600664442 is a wasteful number, since it uses less digits than its factorization.

26600664442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22674 (or 22663 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 26600664442 in words is "twenty-six billion, six hundred million, six hundred sixty-four thousand, four hundred forty-two".