1966305463 has 4 divisors (see below), whose sum is σ = 1976600448. Its totient is φ = 1956010480.

The previous prime is 1966305461. The next prime is 1966305487. The reversal of 1966305463 is 3645036691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1966305463 - 2¹ = 1966305461 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 (1966305461) 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, 5147206 + ... + 5147587.

It is an arithmetic number, because the mean of its divisors is an integer number (494150112).

Almost surely, 2^1966305463 is an apocalyptic number.

1966305463 is a deficient number, since it is larger than the sum of its proper divisors (10294985).

1966305463 is a wasteful number, since it uses less digits than its factorization.

1966305463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10294984.

The product of its (nonzero) digits is 349920, while the sum is 43.

The square root of 1966305463 is about 44343.0430056396. The cubic root of 1966305463 is about 1252.8055305942.

The spelling of 1966305463 in words is "one billion, nine hundred sixty-six million, three hundred five thousand, four hundred sixty-three".