11554324511664 has 160 divisors (see below), whose sum is σ = 33124912798464. Its totient is φ = 3441141411840.

The previous prime is 11554324511659. The next prime is 11554324511677. The reversal of 11554324511664 is 46611542345511.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10378324 + ... + 11437580.

Almost surely, 2^{11554324511664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11554324511664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16562456399232).

11554324511664 is an abundant number, since it is smaller than the sum of its proper divisors (21570588286800).

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

11554324511664 is a wasteful number, since it uses less digits than its factorization.

11554324511664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059635 (or 1059629 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 48.

The spelling of 11554324511664 in words is "eleven trillion, five hundred fifty-four billion, three hundred twenty-four million, five hundred eleven thousand, six hundred sixty-four".