611631206061 has 4 divisors (see below), whose sum is σ = 815508274752. Its totient is φ = 407754137372.

The previous prime is 611631206051. The next prime is 611631206077. The reversal of 611631206061 is 160602136116.

611631206061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 611631206061 - 2²² = 611627011757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611631206051) 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, 101938534341 + ... + 101938534346.

It is an arithmetic number, because the mean of its divisors is an integer number (203877068688).

Almost surely, 2^611631206061 is an apocalyptic number.

It is an amenable number.

611631206061 is a deficient number, since it is larger than the sum of its proper divisors (203877068691).

611631206061 is a wasteful number, since it uses less digits than its factorization.

611631206061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203877068690.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 611631206061 in words is "six hundred eleven billion, six hundred thirty-one million, two hundred six thousand, sixty-one".