2145066726 has 16 divisors (see below), whose sum is σ = 4680145728. Its totient is φ = 650020200.

The previous prime is 2145066719. The next prime is 2145066767. The reversal of 2145066726 is 6276605412.

It is a super-2 number, since 2×2145066726² = 9202622517984718152, which contains 22 as substring.

It is a Curzon number.

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, 16250440 + ... + 16250571.

It is an arithmetic number, because the mean of its divisors is an integer number (292509108).

Almost surely, 2^2145066726 is an apocalyptic number.

2145066726 is an abundant number, since it is smaller than the sum of its proper divisors (2535079002).

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

2145066726 is a wasteful number, since it uses less digits than its factorization.

2145066726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32501027.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 2145066726 is about 46314.8650651171. The cubic root of 2145066726 is about 1289.6749628773.

The spelling of 2145066726 in words is "two billion, one hundred forty-five million, sixty-six thousand, seven hundred twenty-six".