11655329957 has 2 divisors, whose sum is σ = 11655329958. Its totient is φ = 11655329956.

The previous prime is 11655329953. The next prime is 11655330073. The reversal of 11655329957 is 75992355611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11519514241 + 135815716 = 107329^2 + 11654^2 .

It is a cyclic number.

It is not a de Polignac number, because 11655329957 - 2² = 11655329953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11655329899 and 11655329908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11655329953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827664978 + 5827664979.

It is an arithmetic number, because the mean of its divisors is an integer number (5827664979).

Almost surely, 2^11655329957 is an apocalyptic number.

It is an amenable number.

11655329957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655329957 is an equidigital number, since it uses as much as digits as its factorization.

11655329957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2551500, while the sum is 53.

The spelling of 11655329957 in words is "eleven billion, six hundred fifty-five million, three hundred twenty-nine thousand, nine hundred fifty-seven".