11553764243657 has 2 divisors, whose sum is σ = 11553764243658. Its totient is φ = 11553764243656.

The previous prime is 11553764243639. The next prime is 11553764243717. The reversal of 11553764243657 is 75634246735511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11096600296336 + 457163947321 = 3331156^2 + 676139^2 .

It is a cyclic number.

It is not a de Polignac number, because 11553764243657 - 2²⁸ = 11553495808201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11553764243596 and 11553764243605.

It is not a weakly prime, because it can be changed into another prime (11553764246657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776882121828 + 5776882121829.

It is an arithmetic number, because the mean of its divisors is an integer number (5776882121829).

Almost surely, 2^{11553764243657} is an apocalyptic number.

It is an amenable number.

11553764243657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11553764243657 is an equidigital number, since it uses as much as digits as its factorization.

11553764243657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504000, while the sum is 59.

The spelling of 11553764243657 in words is "eleven trillion, five hundred fifty-three billion, seven hundred sixty-four million, two hundred forty-three thousand, six hundred fifty-seven".