123666802370 has 32 divisors (see below), whose sum is σ = 228731974848. Its totient is φ = 48105465408.

The previous prime is 123666802361. The next prime is 123666802373. The reversal of 123666802370 is 73208666321.

It is not an unprimeable number, because it can be changed into a prime (123666802373) 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 15 ways as a sum of consecutive naturals, for example, 657677 + ... + 824543.

It is an arithmetic number, because the mean of its divisors is an integer number (7147874214).

Almost surely, 2^123666802370 is an apocalyptic number.

123666802370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123666802370 is a deficient number, since it is larger than the sum of its proper divisors (105065172478).

123666802370 is a wasteful number, since it uses less digits than its factorization.

123666802370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168914.

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 123666802370 in words is "one hundred twenty-three billion, six hundred sixty-six million, eight hundred two thousand, three hundred seventy".