2666225136 has 80 divisors (see below), whose sum is σ = 7285890816. Its totient is φ = 838430208.

The previous prime is 2666225131. The next prime is 2666225137. The reversal of 2666225136 is 6315226662.

It is a junction number, because it is equal to n+sod(n) for n = 2666225094 and 2666225103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666225131) 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, 64051 + ... + 97133.

Almost surely, 2^2666225136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2666225136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3642945408).

2666225136 is an abundant number, since it is smaller than the sum of its proper divisors (4619665680).

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

2666225136 is a wasteful number, since it uses less digits than its factorization.

2666225136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33190 (or 33184 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The square root of 2666225136 is about 51635.5026701590. The cubic root of 2666225136 is about 1386.6460094104.

The spelling of 2666225136 in words is "two billion, six hundred sixty-six million, two hundred twenty-five thousand, one hundred thirty-six".