11611510560061 has 2 divisors, whose sum is σ = 11611510560062. Its totient is φ = 11611510560060.

The previous prime is 11611510560049. The next prime is 11611510560137. The reversal of 11611510560061 is 16006501511611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6212830428025 + 5398680132036 = 2492555^2 + 2323506^2 .

It is a cyclic number.

It is not a de Polignac number, because 11611510560061 - 2²⁷ = 11611376342333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11611510559999 and 11611510560026.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11611510560361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805755280030 + 5805755280031.

It is an arithmetic number, because the mean of its divisors is an integer number (5805755280031).

Almost surely, 2^{11611510560061} is an apocalyptic number.

It is an amenable number.

11611510560061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611510560061 is an equidigital number, since it uses as much as digits as its factorization.

11611510560061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 34.

The spelling of 11611510560061 in words is "eleven trillion, six hundred eleven billion, five hundred ten million, five hundred sixty thousand, sixty-one".