60220616861 has 4 divisors (see below), whose sum is σ = 61045556892. Its totient is φ = 59395676832.

The previous prime is 60220616857. The next prime is 60220616899. The reversal of 60220616861 is 16861602206.

60220616861 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.

It can be written as a sum of positive squares in 2 ways, for example, as 15813062500 + 44407554361 = 125750^2 + 210731^2 .

It is a cyclic number.

It is not a de Polignac number, because 60220616861 - 2² = 60220616857 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 (60220616851) 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, 412469906 + ... + 412470051.

It is an arithmetic number, because the mean of its divisors is an integer number (15261389223).

Almost surely, 2^60220616861 is an apocalyptic number.

It is an amenable number.

60220616861 is a deficient number, since it is larger than the sum of its proper divisors (824940031).

60220616861 is an equidigital number, since it uses as much as digits as its factorization.

60220616861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824940030.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 60220616861 in words is "sixty billion, two hundred twenty million, six hundred sixteen thousand, eight hundred sixty-one".