611220245135 has 4 divisors (see below), whose sum is σ = 733464294168. Its totient is φ = 488976196104.

The previous prime is 611220245117. The next prime is 611220245197. The reversal of 611220245135 is 531542022116.

611220245135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 611220245135 - 2²⁰ = 611219196559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61122024509 + ... + 61122024518.

It is an arithmetic number, because the mean of its divisors is an integer number (183366073542).

Almost surely, 2^611220245135 is an apocalyptic number.

611220245135 is a deficient number, since it is larger than the sum of its proper divisors (122244049033).

611220245135 is a wasteful number, since it uses less digits than its factorization.

611220245135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122244049032.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 611220245135 in words is "six hundred eleven billion, two hundred twenty million, two hundred forty-five thousand, one hundred thirty-five".