2661334345 has 32 divisors (see below), whose sum is σ = 3401035776. Its totient is φ = 1996032000.

The previous prime is 2661334339. The next prime is 2661334373. The reversal of 2661334345 is 5434331662.

2661334345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2661334345 - 2²⁷ = 2527116617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 733977 + ... + 737593.

It is an arithmetic number, because the mean of its divisors is an integer number (106282368).

Almost surely, 2^2661334345 is an apocalyptic number.

It is an amenable number.

2661334345 is a deficient number, since it is larger than the sum of its proper divisors (739701431).

2661334345 is a wasteful number, since it uses less digits than its factorization.

2661334345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801.

The product of its digits is 155520, while the sum is 37.

The square root of 2661334345 is about 51588.1221309712. The cubic root of 2661334345 is about 1385.7976255921.

The spelling of 2661334345 in words is "two billion, six hundred sixty-one million, three hundred thirty-four thousand, three hundred forty-five".