23611156061 has 16 divisors (see below), whose sum is σ = 25689948336. Its totient is φ = 21609686016.

The previous prime is 23611156043. The next prime is 23611156067. The reversal of 23611156061 is 16065111632.

It can be written as a sum of positive squares in 8 ways, for example, as 1348725625 + 22262430436 = 36725^2 + 149206^2 .

It is not a de Polignac number, because 23611156061 - 2²² = 23606961757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23611156067) 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, 1246715 + ... + 1265511.

It is an arithmetic number, because the mean of its divisors is an integer number (1605621771).

Almost surely, 2^23611156061 is an apocalyptic number.

It is an amenable number.

23611156061 is a deficient number, since it is larger than the sum of its proper divisors (2078792275).

23611156061 is a wasteful number, since it uses less digits than its factorization.

23611156061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20848.

The product of its (nonzero) digits is 6480, while the sum is 32.

Adding to 23611156061 its reverse (16065111632), we get a palindrome (39676267693).

The spelling of 23611156061 in words is "twenty-three billion, six hundred eleven million, one hundred fifty-six thousand, sixty-one".