11554164645620 has 24 divisors (see below), whose sum is σ = 25691024918664. Its totient is φ = 4349803160576.

The previous prime is 11554164645581. The next prime is 11554164645629. The reversal of 11554164645620 is 2654646145511.

It can be written as a sum of positive squares in 4 ways, for example, as 3108549819664 + 8445614825956 = 1763108^2 + 2906134^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554164645629) 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, 16991418257 + ... + 16991418936.

It is an arithmetic number, because the mean of its divisors is an integer number (1070459371611).

Almost surely, 2^{11554164645620} is an apocalyptic number.

11554164645620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11554164645620 is an abundant number, since it is smaller than the sum of its proper divisors (14136860273044).

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

11554164645620 is a wasteful number, since it uses less digits than its factorization.

11554164645620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33982837219 (or 33982837217 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 50.

The spelling of 11554164645620 in words is "eleven trillion, five hundred fifty-four billion, one hundred sixty-four million, six hundred forty-five thousand, six hundred twenty".