68306146550 has 24 divisors (see below), whose sum is σ = 127157120352. Its totient is φ = 27299300000.

The previous prime is 68306146537. The next prime is 68306146567. The reversal of 68306146550 is 5564160386.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 519326 + ... + 637425.

It is an arithmetic number, because the mean of its divisors is an integer number (5298213348).

Almost surely, 2^68306146550 is an apocalyptic number.

68306146550 is a deficient number, since it is larger than the sum of its proper divisors (58850973802).

68306146550 is a wasteful number, since it uses less digits than its factorization.

68306146550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157944 (or 1157939 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 68306146550 in words is "sixty-eight billion, three hundred six million, one hundred forty-six thousand, five hundred fifty".