2051297166 has 16 divisors (see below), whose sum is σ = 4120994304. Its totient is φ = 680699064.

The previous prime is 2051297161. The next prime is 2051297177. The reversal of 2051297166 is 6617921502.

2051297166 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051297161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765216 + ... + 767891.

It is an arithmetic number, because the mean of its divisors is an integer number (257562144).

Almost surely, 2^2051297166 is an apocalyptic number.

2051297166 is an abundant number, since it is smaller than the sum of its proper divisors (2069697138).

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

2051297166 is a wasteful number, since it uses less digits than its factorization.

2051297166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533335.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 2051297166 is about 45291.2482274446. The cubic root of 2051297166 is about 1270.6019767973.

The spelling of 2051297166 in words is "two billion, fifty-one million, two hundred ninety-seven thousand, one hundred sixty-six".