66782154950 has 24 divisors (see below), whose sum is σ = 141959781552. Its totient is φ = 22896738720.

The previous prime is 66782154949. The next prime is 66782154979. The reversal of 66782154950 is 5945128766.

It is a junction number, because it is equal to n+sod(n) for n = 66782154892 and 66782154901.

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, 95402729 + ... + 95403428.

It is an arithmetic number, because the mean of its divisors is an integer number (5914990898).

Almost surely, 2^66782154950 is an apocalyptic number.

66782154950 is an abundant number, since it is smaller than the sum of its proper divisors (75177626602).

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

66782154950 is a wasteful number, since it uses less digits than its factorization.

66782154950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190806176 (or 190806171 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 66782154950 in words is "sixty-six billion, seven hundred eighty-two million, one hundred fifty-four thousand, nine hundred fifty".