20601522150 has 192 divisors, whose sum is σ = 57384827136. Its totient is φ = 4847872000.

The previous prime is 20601522143. The next prime is 20601522169. The reversal of 20601522150 is 5122510602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20601522150.

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, 15761797 + ... + 15763103.

It is an arithmetic number, because the mean of its divisors is an integer number (298879308).

Almost surely, 2^20601522150 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20601522150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28692413568).

20601522150 is an abundant number, since it is smaller than the sum of its proper divisors (36783304986).

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

20601522150 is a wasteful number, since it uses less digits than its factorization.

20601522150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 20601522150 in words is "twenty billion, six hundred one million, five hundred twenty-two thousand, one hundred fifty".