11556650601 has 12 divisors (see below), whose sum is σ = 17048109312. Its totient is φ = 7540509336.

The previous prime is 11556650593. The next prime is 11556650621. The reversal of 11556650601 is 10605665511.

It is not a de Polignac number, because 11556650601 - 2³ = 11556650593 is a prime.

It is a super-2 number, since 2×11556650601² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11556650621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13659921 + ... + 13660766.

It is an arithmetic number, because the mean of its divisors is an integer number (1420675776).

Almost surely, 2^11556650601 is an apocalyptic number.

It is an amenable number.

11556650601 is a deficient number, since it is larger than the sum of its proper divisors (5491458711).

11556650601 is a wasteful number, since it uses less digits than its factorization.

11556650601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27320740 (or 27320737 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 11556650601 in words is "eleven billion, five hundred fifty-six million, six hundred fifty thousand, six hundred one".