2551051166 has 4 divisors (see below), whose sum is σ = 3826576752. Its totient is φ = 1275525582.

The previous prime is 2551051157. The next prime is 2551051213. The reversal of 2551051166 is 6611501552.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637762790 + ... + 637762793.

It is an arithmetic number, because the mean of its divisors is an integer number (956644188).

Almost surely, 2^2551051166 is an apocalyptic number.

2551051166 is a deficient number, since it is larger than the sum of its proper divisors (1275525586).

2551051166 is a wasteful number, since it uses less digits than its factorization.

2551051166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275525585.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 2551051166 is about 50507.9317137418. The cubic root of 2551051166 is about 1366.3849077556.

The spelling of 2551051166 in words is "two billion, five hundred fifty-one million, fifty-one thousand, one hundred sixty-six".