11643210590550 has 192 divisors, whose sum is σ = 36005468073984. Its totient is φ = 2419014556800.

The previous prime is 11643210590549. The next prime is 11643210590563. The reversal of 11643210590550 is 5509501234611.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 82939719 + ... + 83079981.

It is an arithmetic number, because the mean of its divisors is an integer number (187528479552).

Almost surely, 2^{11643210590550} is an apocalyptic number.

11643210590550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11643210590550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18002734036992).

11643210590550 is an abundant number, since it is smaller than the sum of its proper divisors (24362257483434).

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

11643210590550 is a wasteful number, since it uses less digits than its factorization.

11643210590550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147483 (or 147478 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 42.

The spelling of 11643210590550 in words is "eleven trillion, six hundred forty-three billion, two hundred ten million, five hundred ninety thousand, five hundred fifty".