215044145100 has 216 divisors, whose sum is σ = 722910137040. Its totient is φ = 53301680640.

The previous prime is 215044145039. The next prime is 215044145123. The reversal of 215044145100 is 1541440512.

215044145100 is a `hidden beast` number, since 2 + 1 + 504 + 4 + 145 + 10 + 0 = 666.

215044145100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 787662 + ... + 1024938.

It is an arithmetic number, because the mean of its divisors is an integer number (3346806190).

Almost surely, 2^215044145100 is an apocalyptic number.

215044145100 is a gapful number since it is divisible by the number (20) 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 215044145100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361455068520).

215044145100 is an abundant number, since it is smaller than the sum of its proper divisors (507865991940).

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

215044145100 is a wasteful number, since it uses less digits than its factorization.

215044145100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237369 (or 237359 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 215044145100 its reverse (1541440512), we get a palindrome (216585585612).

The spelling of 215044145100 in words is "two hundred fifteen billion, forty-four million, one hundred forty-five thousand, one hundred".