1815782966 has 8 divisors (see below), whose sum is σ = 2724342744. Its totient is φ = 907668720.

The previous prime is 1815782963. The next prime is 1815782977. The reversal of 1815782966 is 6692875181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1815782963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101000 + ... + 117611.

It is an arithmetic number, because the mean of its divisors is an integer number (340542843).

Almost surely, 2^1815782966 is an apocalyptic number.

1815782966 is a deficient number, since it is larger than the sum of its proper divisors (908559778).

1815782966 is a wasteful number, since it uses less digits than its factorization.

1815782966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222766.

The product of its digits is 1451520, while the sum is 53.

The square root of 1815782966 is about 42612.0049516565. The cubic root of 1815782966 is about 1219.9854351930.

The spelling of 1815782966 in words is "one billion, eight hundred fifteen million, seven hundred eighty-two thousand, nine hundred sixty-six".