11156240275 has 12 divisors (see below), whose sum is σ = 14435205552. Its totient is φ = 8536948640.

The previous prime is 11156240201. The next prime is 11156240281. The reversal of 11156240275 is 57204265111.

It is not a de Polignac number, because 11156240275 - 2¹³ = 11156232083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11156240275.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9700504 + ... + 9701653.

It is an arithmetic number, because the mean of its divisors is an integer number (1202933796).

Almost surely, 2^11156240275 is an apocalyptic number.

11156240275 is a deficient number, since it is larger than the sum of its proper divisors (3278965277).

11156240275 is a wasteful number, since it uses less digits than its factorization.

11156240275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19402190 (or 19402185 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 11156240275 in words is "eleven billion, one hundred fifty-six million, two hundred forty thousand, two hundred seventy-five".