11655242537 has 2 divisors, whose sum is σ = 11655242538. Its totient is φ = 11655242536.

The previous prime is 11655242429. The next prime is 11655242549. The reversal of 11655242537 is 73524255611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6797013136 + 4858229401 = 82444^2 + 69701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11655242537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11655242494 and 11655242503.

It is not a weakly prime, because it can be changed into another prime (11655242567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827621268 + 5827621269.

It is an arithmetic number, because the mean of its divisors is an integer number (5827621269).

Almost surely, 2^11655242537 is an apocalyptic number.

It is an amenable number.

11655242537 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655242537 is an equidigital number, since it uses as much as digits as its factorization.

11655242537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 41.

The spelling of 11655242537 in words is "eleven billion, six hundred fifty-five million, two hundred forty-two thousand, five hundred thirty-seven".