20341552530 has 256 divisors, whose sum is σ = 55929968640. Its totient is φ = 4700602368.

The previous prime is 20341552499. The next prime is 20341552531. The reversal of 20341552530 is 3525514302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (20341552531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 60360522 + ... + 60360858.

It is an arithmetic number, because the mean of its divisors is an integer number (218476440).

Almost surely, 2^20341552530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20341552530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27964984320).

20341552530 is an abundant number, since it is smaller than the sum of its proper divisors (35588416110).

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

20341552530 is a wasteful number, since it uses less digits than its factorization.

20341552530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 20341552530 in words is "twenty billion, three hundred forty-one million, five hundred fifty-two thousand, five hundred thirty".