2061623022061 has 4 divisors (see below), whose sum is σ = 2061993223900. Its totient is φ = 2061252820224.

The previous prime is 2061623022047. The next prime is 2061623022071. The reversal of 2061623022061 is 1602203261602.

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 1241998802500 + 819624219561 = 1114450^2 + 905331^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061623022061 - 2³⁷ = 1924184068589 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 (2061623022071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185092566 + ... + 185103703.

It is an arithmetic number, because the mean of its divisors is an integer number (515498305975).

Almost surely, 2^{2061623022061} is an apocalyptic number.

It is an amenable number.

2061623022061 is a deficient number, since it is larger than the sum of its proper divisors (370201839).

2061623022061 is an equidigital number, since it uses as much as digits as its factorization.

2061623022061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370201838.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 2061623022061 its reverse (1602203261602), we get a palindrome (3663826283663).

It can be divided in two parts, 206162 and 3022061, that added together give a palindrome (3228223).

The spelling of 2061623022061 in words is "two trillion, sixty-one billion, six hundred twenty-three million, twenty-two thousand, sixty-one".