150210721728 has 224 divisors, whose sum is σ = 455175152640. Its totient is φ = 48553344000.

The previous prime is 150210721631. The next prime is 150210721751. The reversal of 150210721728 is 827127012051.

150210721728 is a `hidden beast` number, since 1 + 502 + 10 + 72 + 1 + 72 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 150210721692 and 150210721701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7473933 + ... + 7494003.

Almost surely, 2^150210721728 is an apocalyptic number.

150210721728 is a gapful number since it is divisible by the number (18) 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 150210721728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227587576320).

150210721728 is an abundant number, since it is smaller than the sum of its proper divisors (304964430912).

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

150210721728 is a wasteful number, since it uses less digits than its factorization.

150210721728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20224 (or 20208 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

Adding to 150210721728 its reverse (827127012051), we get a palindrome (977337733779).

The spelling of 150210721728 in words is "one hundred fifty billion, two hundred ten million, seven hundred twenty-one thousand, seven hundred twenty-eight".