11520044646 has 96 divisors (see below), whose sum is σ = 26282309760. Its totient is φ = 3337459200.

The previous prime is 11520044617. The next prime is 11520044671. The reversal of 11520044646 is 64644002511.

It is a super-2 number, since 2×11520044646² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5329806 + ... + 5331966.

It is an arithmetic number, because the mean of its divisors is an integer number (273774060).

Almost surely, 2^11520044646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11520044646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13141154880).

11520044646 is an abundant number, since it is smaller than the sum of its proper divisors (14762265114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11520044646 is a wasteful number, since it uses less digits than its factorization.

11520044646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310 (or 2273 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 11520044646 in words is "eleven billion, five hundred twenty million, forty-four thousand, six hundred forty-six".