26306999966 has 8 divisors (see below), whose sum is σ = 42495923064. Its totient is φ = 12141692280.

The previous prime is 26306999959. The next prime is 26307000011. The reversal of 26306999966 is 66999960362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×26306999966² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505903820 + ... + 505903871.

It is an arithmetic number, because the mean of its divisors is an integer number (5311990383).

Almost surely, 2^26306999966 is an apocalyptic number.

26306999966 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

26306999966 is a deficient number, since it is larger than the sum of its proper divisors (16188923098).

26306999966 is a wasteful number, since it uses less digits than its factorization.

26306999966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011807706.

The product of its (nonzero) digits is 51018336, while the sum is 65.

The spelling of 26306999966 in words is "twenty-six billion, three hundred six million, nine hundred ninety-nine thousand, nine hundred sixty-six".