135569868965531 has 192 divisors, whose sum is σ = 199664737026048. Its totient is φ = 89206520832000.

The previous prime is 135569868965521. The next prime is 135569868965569.

135569868965531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 135569868965531 - 2⁶ = 135569868965467 is a prime.

It is a super-2 number, since 2×135569868965531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135569868965521) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2079802166 + ... + 2079867348.

It is an arithmetic number, because the mean of its divisors is an integer number (1039920505344).

Almost surely, 2^{135569868965531} is an apocalyptic number.

135569868965531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135569868965531 is a deficient number, since it is larger than the sum of its proper divisors (64094868060517).

135569868965531 is a wasteful number, since it uses less digits than its factorization.

135569868965531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65554 (or 65543 counting only the distinct ones).

The product of its digits is 6298560000, while the sum is 80.

The spelling of 135569868965531 in words is "one hundred thirty-five trillion, five hundred sixty-nine billion, eight hundred sixty-eight million, nine hundred sixty-five thousand, five hundred thirty-one".