123455666676 has 12 divisors (see below), whose sum is σ = 288063222272. Its totient is φ = 41151888888.

The previous prime is 123455666671. The next prime is 123455666687. The reversal of 123455666676 is 676666554321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123455666671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5143986100 + ... + 5143986123.

Almost surely, 2^123455666676 is an apocalyptic number.

It is an amenable number.

123455666676 is an abundant number, since it is smaller than the sum of its proper divisors (164607555596).

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

123455666676 is a wasteful number, since it uses less digits than its factorization.

123455666676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10287972230 (or 10287972228 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 57.

The spelling of 123455666676 in words is "one hundred twenty-three billion, four hundred fifty-five million, six hundred sixty-six thousand, six hundred seventy-six".