123555600146 has 32 divisors (see below), whose sum is σ = 203807956032. Its totient is φ = 55711748160.

The previous prime is 123555600121. The next prime is 123555600163. The reversal of 123555600146 is 641006555321.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1338680 + ... + 1427996.

It is an arithmetic number, because the mean of its divisors is an integer number (6368998626).

Almost surely, 2^123555600146 is an apocalyptic number.

123555600146 is a deficient number, since it is larger than the sum of its proper divisors (80252355886).

123555600146 is a wasteful number, since it uses less digits than its factorization.

123555600146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89834.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 123555600146 in words is "one hundred twenty-three billion, five hundred fifty-five million, six hundred thousand, one hundred forty-six".