135379999566 has 96 divisors (see below), whose sum is σ = 354756408480. Its totient is φ = 38150082432.

The previous prime is 135379999543. The next prime is 135379999571. The reversal of 135379999566 is 665999973531.

135379999566 is a `hidden beast` number, since 1 + 3 + 53 + 7 + 9 + 9 + 9 + 9 + 566 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 135379999494 and 135379999503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157281 + ... + 543596.

It is an arithmetic number, because the mean of its divisors is an integer number (3695379255).

Almost surely, 2^135379999566 is an apocalyptic number.

135379999566 is an abundant number, since it is smaller than the sum of its proper divisors (219376408914).

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

135379999566 is a wasteful number, since it uses less digits than its factorization.

135379999566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700975 (or 700962 counting only the distinct ones).

The product of its digits is 372008700, while the sum is 72.

The spelling of 135379999566 in words is "one hundred thirty-five billion, three hundred seventy-nine million, nine hundred ninety-nine thousand, five hundred sixty-six".