611438680722215 has 16 divisors (see below), whose sum is σ = 736600377486528. Its totient is φ = 487235068993536.

The previous prime is 611438680722193. The next prime is 611438680722251. The reversal of 611438680722215 is 512227086834116.

611438680722215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 611438680722215 - 2¹⁶ = 611438680656679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43874789 + ... + 56105921.

It is an arithmetic number, because the mean of its divisors is an integer number (46037523592908).

Almost surely, 2^{611438680722215} is an apocalyptic number.

611438680722215 is a deficient number, since it is larger than the sum of its proper divisors (125161696764313).

611438680722215 is a wasteful number, since it uses less digits than its factorization.

611438680722215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12270298.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 611438680722215 in words is "six hundred eleven trillion, four hundred thirty-eight billion, six hundred eighty million, seven hundred twenty-two thousand, two hundred fifteen".