135355661111 has 8 divisors (see below), whose sum is σ = 147683547648. Its totient is φ = 123031579000.

The previous prime is 135355661099. The next prime is 135355661137. The reversal of 135355661111 is 111166553531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135355661111 - 2³⁴ = 118175791927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135355621111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876455 + ... + 1019256.

It is an arithmetic number, because the mean of its divisors is an integer number (18460443456).

Almost surely, 2^135355661111 is an apocalyptic number.

135355661111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135355661111 is a deficient number, since it is larger than the sum of its proper divisors (12327886537).

135355661111 is a wasteful number, since it uses less digits than its factorization.

135355661111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1902213.

The product of its digits is 40500, while the sum is 38.

The spelling of 135355661111 in words is "one hundred thirty-five billion, three hundred fifty-five million, six hundred sixty-one thousand, one hundred eleven".