166224542203500 has 192 divisors, whose sum is σ = 528081166738944. Its totient is φ = 40294483104000.

The previous prime is 166224542203483. The next prime is 166224542203609. The reversal of 166224542203500 is 5302245422661.

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, 288082287 + ... + 288658713.

It is an arithmetic number, because the mean of its divisors is an integer number (2750422743432).

Almost surely, 2^{166224542203500} is an apocalyptic number.

166224542203500 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 166224542203500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264040583369472).

166224542203500 is an abundant number, since it is smaller than the sum of its proper divisors (361856624535444).

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

166224542203500 is a wasteful number, since it uses less digits than its factorization.

166224542203500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593937 (or 593925 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 166224542203500 in words is "one hundred sixty-six trillion, two hundred twenty-four billion, five hundred forty-two million, two hundred three thousand, five hundred".