66962077 has 24 divisors (see below), whose sum is σ = 86618112. Its totient is φ = 51256800.

The previous prime is 66962069. The next prime is 66962081. The reversal of 66962077 is 77026966.

It is a happy number.

It is not a de Polignac number, because 66962077 - 2³ = 66962069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66962047) 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 23 ways as a sum of consecutive naturals, for example, 18052 + ... + 21442.

It is an arithmetic number, because the mean of its divisors is an integer number (3609088).

Almost surely, 2^66962077 is an apocalyptic number.

It is an amenable number.

66962077 is a deficient number, since it is larger than the sum of its proper divisors (19656035).

66962077 is a wasteful number, since it uses less digits than its factorization.

66962077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3449 (or 3442 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 66962077 is about 8183.0359280648. The cubic root of 66962077 is about 406.0781656873.

The spelling of 66962077 in words is "sixty-six million, nine hundred sixty-two thousand, seventy-seven".