2666441340 has 72 divisors (see below), whose sum is σ = 8166788448. Its totient is φ = 704142720.

The previous prime is 2666441329. The next prime is 2666441363. The reversal of 2666441340 is 431446662.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2666441295 and 2666441304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53371 + ... + 90450.

Almost surely, 2^2666441340 is an apocalyptic number.

2666441340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2666441340 is an abundant number, since it is smaller than the sum of its proper divisors (5500347108).

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

2666441340 is a wasteful number, since it uses less digits than its factorization.

2666441340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143939 (or 143934 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 2666441340 is about 51637.5961872742. The cubic root of 2666441340 is about 1386.6834894049.

The spelling of 2666441340 in words is "two billion, six hundred sixty-six million, four hundred forty-one thousand, three hundred forty".