2666452416 has 56 divisors (see below), whose sum is σ = 7070658960. Its totient is φ = 886843392.

The previous prime is 2666452409. The next prime is 2666452487. The reversal of 2666452416 is 6142546662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72550 + ... + 102938.

Almost surely, 2^2666452416 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 2666452416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3535329480).

2666452416 is an abundant number, since it is smaller than the sum of its proper divisors (4404206544).

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

2666452416 is a wasteful number, since it uses less digits than its factorization.

2666452416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30861 (or 30851 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 2666452416 is about 51637.7034346029. The cubic root of 2666452416 is about 1386.6854094278.

The spelling of 2666452416 in words is "two billion, six hundred sixty-six million, four hundred fifty-two thousand, four hundred sixteen".