11561650101 has 48 divisors (see below), whose sum is σ = 17532523008. Its totient is φ = 7613190000.

The previous prime is 11561650099. The next prime is 11561650117. The reversal of 11561650101 is 10105616511.

11561650101 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 1 + 650 + 1 + 0 + 1 = 666.

It is not a de Polignac number, because 11561650101 - 2¹ = 11561650099 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11561650141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7989360 + ... + 7990806.

It is an arithmetic number, because the mean of its divisors is an integer number (365260896).

Almost surely, 2^11561650101 is an apocalyptic number.

It is an amenable number.

11561650101 is a deficient number, since it is larger than the sum of its proper divisors (5970872907).

11561650101 is a wasteful number, since it uses less digits than its factorization.

11561650101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 11561650101 in words is "eleven billion, five hundred sixty-one million, six hundred fifty thousand, one hundred one".