11550206156 has 6 divisors (see below), whose sum is σ = 20212860780. Its totient is φ = 5775103076.

The previous prime is 11550206131. The next prime is 11550206167. The reversal of 11550206156 is 65160205511.

It is a super-3 number, since 3×11550206156³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443775766 + ... + 1443775773.

It is an arithmetic number, because the mean of its divisors is an integer number (3368810130).

Almost surely, 2^11550206156 is an apocalyptic number.

It is an amenable number.

11550206156 is a deficient number, since it is larger than the sum of its proper divisors (8662654624).

11550206156 is a wasteful number, since it uses less digits than its factorization.

11550206156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887551543 (or 2887551541 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 11550206156 in words is "eleven billion, five hundred fifty million, two hundred six thousand, one hundred fifty-six".