611552241213 has 8 divisors (see below), whose sum is σ = 815418846528. Its totient is φ = 407693565024.

The previous prime is 611552241203. The next prime is 611552241271. The reversal of 611552241213 is 312142255116.

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

It is a de Polignac number, because none of the positive numbers 2^k-611552241213 is a prime.

It is a super-2 number, since 2×611552241213² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611552241203) 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, 1799920 + ... + 2112537.

It is an arithmetic number, because the mean of its divisors is an integer number (101927355816).

Almost surely, 2^611552241213 is an apocalyptic number.

It is an amenable number.

611552241213 is a deficient number, since it is larger than the sum of its proper divisors (203866605315).

611552241213 is a wasteful number, since it uses less digits than its factorization.

611552241213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964563.

The product of its digits is 14400, while the sum is 33.

Adding to 611552241213 its reverse (312142255116), we get a palindrome (923694496329).

The spelling of 611552241213 in words is "six hundred eleven billion, five hundred fifty-two million, two hundred forty-one thousand, two hundred thirteen".