1881119966 has 48 divisors (see below), whose sum is σ = 3274992000. Its totient is φ = 807515280.

The previous prime is 1881119917. The next prime is 1881119971. The reversal of 1881119966 is 6699111881.

It is a super-2 number, since 2×1881119966² = 7077224652967682312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2753861 + ... + 2754543.

It is an arithmetic number, because the mean of its divisors is an integer number (68229000).

Almost surely, 2^1881119966 is an apocalyptic number.

1881119966 is a deficient number, since it is larger than the sum of its proper divisors (1393872034).

1881119966 is a wasteful number, since it uses less digits than its factorization.

1881119966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325 (or 1314 counting only the distinct ones).

The product of its digits is 186624, while the sum is 50.

The square root of 1881119966 is about 43371.8798993080. The cubic root of 1881119966 is about 1234.4461920557.

The spelling of 1881119966 in words is "one billion, eight hundred eighty-one million, one hundred nineteen thousand, nine hundred sixty-six".