136021022155061 has 16 divisors (see below), whose sum is σ = 141252392391600. Its totient is φ = 130880914145280.

The previous prime is 136021022155013. The next prime is 136021022155127. The reversal of 136021022155061 is 160551220120631.

It can be written as a sum of positive squares in 8 ways, for example, as 4227522536836 + 131793499618225 = 2056094^2 + 11480135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136021022155061 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 (136021022151061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84651221 + ... + 86243093.

It is an arithmetic number, because the mean of its divisors is an integer number (8828274524475).

Almost surely, 2^{136021022155061} is an apocalyptic number.

It is an amenable number.

136021022155061 is a deficient number, since it is larger than the sum of its proper divisors (5231370236539).

136021022155061 is a wasteful number, since it uses less digits than its factorization.

136021022155061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620536.

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 136021022155061 its reverse (160551220120631), we get a palindrome (296572242275692).

The spelling of 136021022155061 in words is "one hundred thirty-six trillion, twenty-one billion, twenty-two million, one hundred fifty-five thousand, sixty-one".