26155567012 has 12 divisors (see below), whose sum is σ = 45777578140. Its totient is φ = 13076258976.

The previous prime is 26155567003. The next prime is 26155567049. The reversal of 26155567012 is 21076555162.

It can be written as a sum of positive squares in 2 ways, for example, as 3180283236 + 22975283776 = 56394^2 + 151576^2 .

It is a super-2 number, since 2×26155567012² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 342087 + ... + 411502.

Almost surely, 2^26155567012 is an apocalyptic number.

It is an amenable number.

26155567012 is a deficient number, since it is larger than the sum of its proper divisors (19622011128).

26155567012 is a wasteful number, since it uses less digits than its factorization.

26155567012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762270 (or 762268 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 26155567012 in words is "twenty-six billion, one hundred fifty-five million, five hundred sixty-seven thousand, twelve".