11152215513 has 24 divisors (see below), whose sum is σ = 16730890176. Its totient is φ = 7423455600.

The previous prime is 11152215493. The next prime is 11152215539. The reversal of 11152215513 is 31551225111.

It is a happy number.

11152215513 is a `hidden beast` number, since 1 + 115 + 22 + 15 + 513 = 666.

It is not a de Polignac number, because 11152215513 - 2¹² = 11152211417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11152215563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125908 + ... + 195338.

It is an arithmetic number, because the mean of its divisors is an integer number (697120424).

Almost surely, 2^11152215513 is an apocalyptic number.

It is an amenable number.

11152215513 is a deficient number, since it is larger than the sum of its proper divisors (5578674663).

11152215513 is an frugal number, since it uses more digits than its factorization.

11152215513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70107 (or 70095 counting only the distinct ones).

The product of its digits is 1500, while the sum is 27.

The spelling of 11152215513 in words is "eleven billion, one hundred fifty-two million, two hundred fifteen thousand, five hundred thirteen".