123606215668 has 48 divisors (see below), whose sum is σ = 239144802624. Its totient is φ = 55537954560.

The previous prime is 123606215657. The next prime is 123606215669. The reversal of 123606215668 is 866512606321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123606215669) 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, 933571 + ... + 1057717.

It is an arithmetic number, because the mean of its divisors is an integer number (4982183388).

Almost surely, 2^123606215668 is an apocalyptic number.

It is an amenable number.

123606215668 is a deficient number, since it is larger than the sum of its proper divisors (115538586956).

123606215668 is a wasteful number, since it uses less digits than its factorization.

123606215668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124672 (or 124670 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 46.

The spelling of 123606215668 in words is "one hundred twenty-three billion, six hundred six million, two hundred fifteen thousand, six hundred sixty-eight".