611303025061 has 4 divisors (see below), whose sum is σ = 611523954112. Its totient is φ = 611082096012.

The previous prime is 611303025059. The next prime is 611303025071. The reversal of 611303025061 is 160520303116.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 611303025061 - 2¹ = 611303025059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611303025071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110460375 + ... + 110465908.

It is an arithmetic number, because the mean of its divisors is an integer number (152880988528).

Almost surely, 2^611303025061 is an apocalyptic number.

It is an amenable number.

611303025061 is a deficient number, since it is larger than the sum of its proper divisors (220929051).

611303025061 is a wasteful number, since it uses less digits than its factorization.

611303025061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220929050.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 611303025061 its reverse (160520303116), we get a palindrome (771823328177).

The spelling of 611303025061 in words is "six hundred eleven billion, three hundred three million, twenty-five thousand, sixty-one".