62221566161 has 4 divisors (see below), whose sum is σ = 62222177892. Its totient is φ = 62220954432.

The previous prime is 62221566151. The next prime is 62221566191. The reversal of 62221566161 is 16166512226.

62221566161 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 brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 51808588225 + 10412977936 = 227615^2 + 102044^2 .

It is a cyclic number.

It is not a de Polignac number, because 62221566161 - 2¹⁰ = 62221565137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (62221566101) 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, 112580 + ... + 370293.

It is an arithmetic number, because the mean of its divisors is an integer number (15555544473).

Almost surely, 2^62221566161 is an apocalyptic number.

It is an amenable number.

62221566161 is a deficient number, since it is larger than the sum of its proper divisors (611731).

62221566161 is a wasteful number, since it uses less digits than its factorization.

62221566161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611730.

The product of its digits is 51840, while the sum is 38.

The spelling of 62221566161 in words is "sixty-two billion, two hundred twenty-one million, five hundred sixty-six thousand, one hundred sixty-one".