611635136142 has 32 divisors (see below), whose sum is σ = 1271815050240. Its totient is φ = 195882212160.

The previous prime is 611635136129. The next prime is 611635136149. The reversal of 611635136142 is 241631536116.

It is a self number, because there is not a number n which added to its sum of digits gives 611635136142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611635136149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11802783 + ... + 11854490.

It is an arithmetic number, because the mean of its divisors is an integer number (39744220320).

Almost surely, 2^611635136142 is an apocalyptic number.

611635136142 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

611635136142 is an abundant number, since it is smaller than the sum of its proper divisors (660179914098).

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

611635136142 is a wasteful number, since it uses less digits than its factorization.

611635136142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23657448.

The product of its digits is 77760, while the sum is 39.

The spelling of 611635136142 in words is "six hundred eleven billion, six hundred thirty-five million, one hundred thirty-six thousand, one hundred forty-two".