611605244340 has 72 divisors (see below), whose sum is σ = 1855765373280. Its totient is φ = 163045255104.

The previous prime is 611605244317. The next prime is 611605244381. The reversal of 611605244340 is 43442506116.

611605244340 is a `hidden beast` number, since 6 + 1 + 1 + 605 + 2 + 4 + 4 + 3 + 40 = 666.

It is a super-2 number, since 2×611605244340² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 611605244295 and 611605244304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81531 + ... + 1108989.

Almost surely, 2^611605244340 is an apocalyptic number.

611605244340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

611605244340 is an abundant number, since it is smaller than the sum of its proper divisors (1244160128940).

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

611605244340 is a wasteful number, since it uses less digits than its factorization.

611605244340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030781 (or 1030776 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 611605244340 in words is "six hundred eleven billion, six hundred five million, two hundred forty-four thousand, three hundred forty".