11061644637 has 8 divisors (see below), whose sum is σ = 15525115360. Its totient is φ = 6986301840.

The previous prime is 11061644567. The next prime is 11061644639. The reversal of 11061644637 is 73644616011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11061644637 - 2⁸ = 11061644381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11061644595 and 11061644604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11061644639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97031914 + ... + 97032027.

It is an arithmetic number, because the mean of its divisors is an integer number (1940639420).

Almost surely, 2^11061644637 is an apocalyptic number.

It is an amenable number.

11061644637 is a deficient number, since it is larger than the sum of its proper divisors (4463470723).

11061644637 is a wasteful number, since it uses less digits than its factorization.

11061644637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194063963.

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 11061644637 in words is "eleven billion, sixty-one million, six hundred forty-four thousand, six hundred thirty-seven".