11523550663020 has 192 divisors, whose sum is σ = 35803484075520. Its totient is φ = 2746027776000.

The previous prime is 11523550662977. The next prime is 11523550663057. The reversal of 11523550663020 is 2036605532511.

It is a self number, because there is not a number n which added to its sum of digits gives 11523550663020.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8643904 + ... + 9887576.

It is an arithmetic number, because the mean of its divisors is an integer number (186476479560).

Almost surely, 2^{11523550663020} is an apocalyptic number.

11523550663020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11523550663020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17901742037760).

11523550663020 is an abundant number, since it is smaller than the sum of its proper divisors (24279933412500).

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

11523550663020 is a wasteful number, since it uses less digits than its factorization.

11523550663020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243936 (or 1243934 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The spelling of 11523550663020 in words is "eleven trillion, five hundred twenty-three billion, five hundred fifty million, six hundred sixty-three thousand, twenty".