61611833341 has 4 divisors (see below), whose sum is σ = 62455831132. Its totient is φ = 60767835552.

The previous prime is 61611833287. The next prime is 61611833357. The reversal of 61611833341 is 14333811616.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37386156025 + 24225677316 = 193355^2 + 155646^2 .

It is a cyclic number.

It is not a de Polignac number, because 61611833341 - 2⁹ = 61611832829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61611833341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61611833141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421998786 + ... + 421998931.

It is an arithmetic number, because the mean of its divisors is an integer number (15613957783).

Almost surely, 2^61611833341 is an apocalyptic number.

It is an amenable number.

61611833341 is a deficient number, since it is larger than the sum of its proper divisors (843997791).

61611833341 is an equidigital number, since it uses as much as digits as its factorization.

61611833341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843997790.

The product of its digits is 31104, while the sum is 37.

The spelling of 61611833341 in words is "sixty-one billion, six hundred eleven million, eight hundred thirty-three thousand, three hundred forty-one".