2088781166 has 4 divisors (see below), whose sum is σ = 3133171752. Its totient is φ = 1044390582.

The previous prime is 2088781159. The next prime is 2088781171. The reversal of 2088781166 is 6611878802.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2088781166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 522195290 + ... + 522195293.

It is an arithmetic number, because the mean of its divisors is an integer number (783292938).

Almost surely, 2^2088781166 is an apocalyptic number.

2088781166 is a deficient number, since it is larger than the sum of its proper divisors (1044390586).

2088781166 is a wasteful number, since it uses less digits than its factorization.

2088781166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044390585.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 2088781166 is about 45703.1855126095. The cubic root of 2088781166 is about 1278.2946785020.

The spelling of 2088781166 in words is "two billion, eighty-eight million, seven hundred eighty-one thousand, one hundred sixty-six".