66363051 has 16 divisors (see below), whose sum is σ = 90967968. Its totient is φ = 43008000.

The previous prime is 66363047. The next prime is 66363071. The reversal of 66363051 is 15036366.

It is not a de Polignac number, because 66363051 - 2² = 66363047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66363001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40651 + ... + 42251.

It is an arithmetic number, because the mean of its divisors is an integer number (5685498).

Almost surely, 2^66363051 is an apocalyptic number.

66363051 is a deficient number, since it is larger than the sum of its proper divisors (24604917).

66363051 is a wasteful number, since it uses less digits than its factorization.

66363051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1982.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 66363051 is about 8146.3520056526. The cubic root of 66363051 is about 404.8636456081.

The spelling of 66363051 in words is "sixty-six million, three hundred sixty-three thousand, fifty-one".