11555152069 has 2 divisors, whose sum is σ = 11555152070. Its totient is φ = 11555152068.

The previous prime is 11555151997. The next prime is 11555152073. The reversal of 11555152069 is 96025155511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10746432225 + 808719844 = 103665^2 + 28438^2 .

It is a cyclic number.

It is not a de Polignac number, because 11555152069 - 2¹³ = 11555143877 is a prime.

It is a super-2 number, since 2×11555152069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11555152099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777576034 + 5777576035.

It is an arithmetic number, because the mean of its divisors is an integer number (5777576035).

Almost surely, 2^11555152069 is an apocalyptic number.

It is an amenable number.

11555152069 is a deficient number, since it is larger than the sum of its proper divisors (1).

11555152069 is an equidigital number, since it uses as much as digits as its factorization.

11555152069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 40.

The spelling of 11555152069 in words is "eleven billion, five hundred fifty-five million, one hundred fifty-two thousand, sixty-nine".