11515343552265 has 64 divisors (see below), whose sum is σ = 21071680261632. Its totient is φ = 5260395571200.

The previous prime is 11515343552243. The next prime is 11515343552387. The reversal of 11515343552265 is 56225534351511.

It is not a de Polignac number, because 11515343552265 - 2¹³ = 11515343544073 is a prime.

It is a super-2 number, since 2×11515343552265² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1683280245 + ... + 1683287085.

It is an arithmetic number, because the mean of its divisors is an integer number (329245004088).

Almost surely, 2^{11515343552265} is an apocalyptic number.

11515343552265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11515343552265 is a deficient number, since it is larger than the sum of its proper divisors (9556336709367).

11515343552265 is a wasteful number, since it uses less digits than its factorization.

11515343552265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15970.

The product of its digits is 2700000, while the sum is 48.

The spelling of 11515343552265 in words is "eleven trillion, five hundred fifteen billion, three hundred forty-three million, five hundred fifty-two thousand, two hundred sixty-five".