2666732544 has 264 divisors, whose sum is σ = 9132043648. Its totient is φ = 761425920.

The previous prime is 2666732527. The next prime is 2666732569. The reversal of 2666732544 is 4452376662.

It is a super-2 number, since 2×2666732544² = 14222924922457423872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2666732544.

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, 1741059 + ... + 1742589.

Almost surely, 2^2666732544 is an apocalyptic number.

2666732544 is a gapful number since it is divisible by the number (24) 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 2666732544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4566021824).

2666732544 is an abundant number, since it is smaller than the sum of its proper divisors (6465311104).

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

2666732544 is an equidigital number, since it uses as much as digits as its factorization.

2666732544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1543 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 45.

The square root of 2666732544 is about 51640.4158000301. The cubic root of 2666732544 is about 1386.7339678052.

The spelling of 2666732544 in words is "two billion, six hundred sixty-six million, seven hundred thirty-two thousand, five hundred forty-four".