611207122072 has 8 divisors (see below), whose sum is σ = 1146013353900. Its totient is φ = 305603561032.

The previous prime is 611207122051. The next prime is 611207122121. The reversal of 611207122072 is 270221702116.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38200445122 + ... + 38200445137.

Almost surely, 2^611207122072 is an apocalyptic number.

It is an amenable number.

611207122072 is a deficient number, since it is larger than the sum of its proper divisors (534806231828).

611207122072 is a wasteful number, since it uses less digits than its factorization.

611207122072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76400890265 (or 76400890261 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

Adding to 611207122072 its reverse (270221702116), we get a palindrome (881428824188).

The spelling of 611207122072 in words is "six hundred eleven billion, two hundred seven million, one hundred twenty-two thousand, seventy-two".