83388380550 has 24 divisors (see below), whose sum is σ = 206803184136. Its totient is φ = 22236901440.

The previous prime is 83388380531. The next prime is 83388380557. The reversal of 83388380550 is 5508388338.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83388380493 and 83388380502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83388380557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277961119 + ... + 277961418.

It is an arithmetic number, because the mean of its divisors is an integer number (8616799339).

Almost surely, 2^83388380550 is an apocalyptic number.

83388380550 is an abundant number, since it is smaller than the sum of its proper divisors (123414803586).

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

83388380550 is a wasteful number, since it uses less digits than its factorization.

83388380550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555922552 (or 555922547 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 83388380550 in words is "eighty-three billion, three hundred eighty-eight million, three hundred eighty thousand, five hundred fifty".