2666135020 has 48 divisors (see below), whose sum is σ = 5814724608. Its totient is φ = 1026083520.

The previous prime is 2666134963. The next prime is 2666135023. The reversal of 2666135020 is 205316662.

It is not an unprimeable number, because it can be changed into a prime (2666135023) 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, 34485 + ... + 80755.

It is an arithmetic number, because the mean of its divisors is an integer number (121140096).

Almost surely, 2^2666135020 is an apocalyptic number.

2666135020 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 2666135020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2907362304).

2666135020 is an abundant number, since it is smaller than the sum of its proper divisors (3148589588).

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

2666135020 is a wasteful number, since it uses less digits than its factorization.

2666135020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46390 (or 46388 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 2666135020 is about 51634.6300461231. The cubic root of 2666135020 is about 1386.6303867737.

The spelling of 2666135020 in words is "two billion, six hundred sixty-six million, one hundred thirty-five thousand, twenty".