135264561656 has 32 divisors (see below), whose sum is σ = 289983875040. Its totient is φ = 57944277888.

The previous prime is 135264561611. The next prime is 135264561689. The reversal of 135264561656 is 656165462531.

It is a super-3 number, since 3×135264561656³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421811 + ... + 669666.

It is an arithmetic number, because the mean of its divisors is an integer number (9061996095).

Almost surely, 2^135264561656 is an apocalyptic number.

It is an amenable number.

135264561656 is an abundant number, since it is smaller than the sum of its proper divisors (154719313384).

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

135264561656 is a wasteful number, since it uses less digits than its factorization.

135264561656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093703 (or 1093699 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 50.

The spelling of 135264561656 in words is "one hundred thirty-five billion, two hundred sixty-four million, five hundred sixty-one thousand, six hundred fifty-six".