11655012630421 has 2 divisors, whose sum is σ = 11655012630422. Its totient is φ = 11655012630420.

The previous prime is 11655012630413. The next prime is 11655012630433. The reversal of 11655012630421 is 12403621055611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11413681155396 + 241331475025 = 3378414^2 + 491255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11655012630421 - 2³ = 11655012630413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11655912630421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5827506315210 + 5827506315211.

It is an arithmetic number, because the mean of its divisors is an integer number (5827506315211).

Almost surely, 2^{11655012630421} is an apocalyptic number.

It is an amenable number.

11655012630421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11655012630421 is an equidigital number, since it uses as much as digits as its factorization.

11655012630421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 11655012630421 in words is "eleven trillion, six hundred fifty-five billion, twelve million, six hundred thirty thousand, four hundred twenty-one".