1966771246 has 32 divisors (see below), whose sum is σ = 3243276288. Its totient is φ = 887094240.

The previous prime is 1966771241. The next prime is 1966771273. The reversal of 1966771246 is 6421776691.

It is a self number, because there is not a number n which added to its sum of digits gives 1966771246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966771241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2467320 + ... + 2468116.

It is an arithmetic number, because the mean of its divisors is an integer number (101352384).

Almost surely, 2^1966771246 is an apocalyptic number.

1966771246 is a deficient number, since it is larger than the sum of its proper divisors (1276505042).

1966771246 is a wasteful number, since it uses less digits than its factorization.

1966771246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536.

The product of its digits is 762048, while the sum is 49.

The square root of 1966771246 is about 44348.2947361001. The cubic root of 1966771246 is about 1252.9044452778.

The spelling of 1966771246 in words is "one billion, nine hundred sixty-six million, seven hundred seventy-one thousand, two hundred forty-six".