1966126412 has 12 divisors (see below), whose sum is σ = 3479381640. Its totient is φ = 972017376.

The previous prime is 1966126373. The next prime is 1966126417. The reversal of 1966126412 is 2146216691.

It is not an unprimeable number, because it can be changed into a prime (1966126417) 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, 2761058 + ... + 2761769.

It is an arithmetic number, because the mean of its divisors is an integer number (289948470).

Almost surely, 2^1966126412 is an apocalyptic number.

It is an amenable number.

1966126412 is a deficient number, since it is larger than the sum of its proper divisors (1513255228).

1966126412 is a wasteful number, since it uses less digits than its factorization.

1966126412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522920 (or 5522918 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 1966126412 is about 44341.0240296726. The cubic root of 1966126412 is about 1252.7675027808.

The spelling of 1966126412 in words is "one billion, nine hundred sixty-six million, one hundred twenty-six thousand, four hundred twelve".