123577543660 has 48 divisors (see below), whose sum is σ = 261521114400. Its totient is φ = 49049694720.

The previous prime is 123577543643. The next prime is 123577543711. The reversal of 123577543660 is 66345775321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1616991 + ... + 1691689.

It is an arithmetic number, because the mean of its divisors is an integer number (5448356550).

Almost surely, 2^123577543660 is an apocalyptic number.

123577543660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123577543660 is an abundant number, since it is smaller than the sum of its proper divisors (137943570740).

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

123577543660 is a wasteful number, since it uses less digits than its factorization.

123577543660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75346 (or 75344 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 123577543660 in words is "one hundred twenty-three billion, five hundred seventy-seven million, five hundred forty-three thousand, six hundred sixty".