135686643866610 has 64 divisors (see below), whose sum is σ = 333917951713920. Its totient is φ = 35265947563520.

The previous prime is 135686643866567. The next prime is 135686643866617. The reversal of 135686643866610 is 16668346686531.

135686643866610 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135686643866617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52875357 + ... + 55382096.

It is an arithmetic number, because the mean of its divisors is an integer number (5217467995530).

Almost surely, 2^{135686643866610} is an apocalyptic number.

135686643866610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135686643866610 is an abundant number, since it is smaller than the sum of its proper divisors (198231307847310).

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

135686643866610 is a wasteful number, since it uses less digits than its factorization.

135686643866610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108258523.

The product of its (nonzero) digits is 537477120, while the sum is 69.

The spelling of 135686643866610 in words is "one hundred thirty-five trillion, six hundred eighty-six billion, six hundred forty-three million, eight hundred sixty-six thousand, six hundred ten".