1966975801 has 8 divisors (see below), whose sum is σ = 2345710464. Its totient is φ = 1612675680.

The previous prime is 1966975793. The next prime is 1966975831. The reversal of 1966975801 is 1085796691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1966975801 - 2³ = 1966975793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1966975831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6108460 + ... + 6108781.

It is an arithmetic number, because the mean of its divisors is an integer number (293213808).

Almost surely, 2^1966975801 is an apocalyptic number.

It is an amenable number.

1966975801 is a deficient number, since it is larger than the sum of its proper divisors (378734663).

1966975801 is a wasteful number, since it uses less digits than its factorization.

1966975801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12217271.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 1966975801 is about 44350.6009091196. The cubic root of 1966975801 is about 1252.9478800841.

The spelling of 1966975801 in words is "one billion, nine hundred sixty-six million, nine hundred seventy-five thousand, eight hundred one".