66962550 has 24 divisors (see below), whose sum is σ = 166067496. Its totient is φ = 17856640.

The previous prime is 66962549. The next prime is 66962617. The reversal of 66962550 is 5526966.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66962499 and 66962508.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 223059 + ... + 223358.

It is an arithmetic number, because the mean of its divisors is an integer number (6919479).

Almost surely, 2^66962550 is an apocalyptic number.

66962550 is an abundant number, since it is smaller than the sum of its proper divisors (99104946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66962550 is a wasteful number, since it uses less digits than its factorization.

66962550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446432 (or 446427 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 66962550 is about 8183.0648292678. The cubic root of 66962550 is about 406.0791218231.

The spelling of 66962550 in words is "sixty-six million, nine hundred sixty-two thousand, five hundred fifty".