11552065150621 has 2 divisors, whose sum is σ = 11552065150622. Its totient is φ = 11552065150620.

The previous prime is 11552065150609. The next prime is 11552065150627. The reversal of 11552065150621 is 12605156025511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7219780911225 + 4332284239396 = 2686965^2 + 2081414^2 .

It is a cyclic number.

It is not a de Polignac number, because 11552065150621 - 2⁴¹ = 9353041895069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11552065150627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5776032575310 + 5776032575311.

It is an arithmetic number, because the mean of its divisors is an integer number (5776032575311).

Almost surely, 2^{11552065150621} is an apocalyptic number.

It is an amenable number.

11552065150621 is a deficient number, since it is larger than the sum of its proper divisors (1).

11552065150621 is an equidigital number, since it uses as much as digits as its factorization.

11552065150621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 11552065150621 in words is "eleven trillion, five hundred fifty-two billion, sixty-five million, one hundred fifty thousand, six hundred twenty-one".