26670565000 has 80 divisors (see below), whose sum is σ = 63109033020. Its totient is φ = 10562400000.

The previous prime is 26670564989. The next prime is 26670565003. The reversal of 26670565000 is 56507662.

It can be written as a sum of positive squares in 10 ways, for example, as 3676481956 + 22994083044 = 60634^2 + 151638^2 .

It is a super-2 number, since 2×26670565000² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26670565003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 478594 + ... + 531406.

Almost surely, 2^26670565000 is an apocalyptic number.

26670565000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26670565000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31554516510).

26670565000 is an abundant number, since it is smaller than the sum of its proper divisors (36438468020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26670565000 is a wasteful number, since it uses less digits than its factorization.

26670565000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52940 (or 52921 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

It can be divided in two parts, 266705 and 65000, that added together give a triangular number (331705 = T₈₁₄).

The spelling of 26670565000 in words is "twenty-six billion, six hundred seventy million, five hundred sixty-five thousand".