1966446746 has 72 divisors (see below), whose sum is σ = 3559156608. Its totient is φ = 813225600.

The previous prime is 1966446739. The next prime is 1966446767. The reversal of 1966446746 is 6476446691.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2167625 + ... + 2168531.

Almost surely, 2^1966446746 is an apocalyptic number.

1966446746 is a deficient number, since it is larger than the sum of its proper divisors (1592709862).

1966446746 is a wasteful number, since it uses less digits than its factorization.

1966446746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 996 (or 968 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 53.

The square root of 1966446746 is about 44344.6360454114. The cubic root of 1966446746 is about 1252.8355354075.

The spelling of 1966446746 in words is "one billion, nine hundred sixty-six million, four hundred forty-six thousand, seven hundred forty-six".