19705415966 has 8 divisors (see below), whose sum is σ = 30042683544. Its totient is φ = 9691188120.

The previous prime is 19705415963. The next prime is 19705415969. The reversal of 19705415966 is 66951450791.

It is an interprime number because it is at equal distance from previous prime (19705415963) and next prime (19705415969).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19705415963) 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, 80759780 + ... + 80760023.

It is an arithmetic number, because the mean of its divisors is an integer number (3755335443).

Almost surely, 2^19705415966 is an apocalyptic number.

19705415966 is a deficient number, since it is larger than the sum of its proper divisors (10337267578).

19705415966 is a wasteful number, since it uses less digits than its factorization.

19705415966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161519866.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 19705415966 in words is "nineteen billion, seven hundred five million, four hundred fifteen thousand, nine hundred sixty-six".