11621361554616 has 32 divisors (see below), whose sum is σ = 31694622422400. Its totient is φ = 3521624713440.

The previous prime is 11621361554581. The next prime is 11621361554639. The reversal of 11621361554616 is 61645516312611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22010154196 + ... + 22010154723.

It is an arithmetic number, because the mean of its divisors is an integer number (990456950700).

Almost surely, 2^{11621361554616} is an apocalyptic number.

It is an amenable number.

11621361554616 is an abundant number, since it is smaller than the sum of its proper divisors (20073260867784).

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

11621361554616 is a wasteful number, since it uses less digits than its factorization.

11621361554616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44020308939 (or 44020308935 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The spelling of 11621361554616 in words is "eleven trillion, six hundred twenty-one billion, three hundred sixty-one million, five hundred fifty-four thousand, six hundred sixteen".