1966286941 has 4 divisors (see below), whose sum is σ = 2029715584. Its totient is φ = 1902858300.

The previous prime is 1966286899. The next prime is 1966286969. The reversal of 1966286941 is 1496826691.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1496826691 = 97 ⋅15431203.

It is a cyclic number.

It is not a de Polignac number, because 1966286941 - 2⁹ = 1966286429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966286741) 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, 31714275 + ... + 31714336.

It is an arithmetic number, because the mean of its divisors is an integer number (507428896).

Almost surely, 2^1966286941 is an apocalyptic number.

It is an amenable number.

1966286941 is a deficient number, since it is larger than the sum of its proper divisors (63428643).

1966286941 is an equidigital number, since it uses as much as digits as its factorization.

1966286941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63428642.

The product of its digits is 1119744, while the sum is 52.

The square root of 1966286941 is about 44342.8341561520. The cubic root of 1966286941 is about 1252.8015968994.

The spelling of 1966286941 in words is "one billion, nine hundred sixty-six million, two hundred eighty-six thousand, nine hundred forty-one".