20623003530 has 16 divisors (see below), whose sum is σ = 49495208544. Its totient is φ = 5499467600.

The previous prime is 20623003517. The next prime is 20623003543. The reversal of 20623003530 is 3530032602.

It is an interprime number because it is at equal distance from previous prime (20623003517) and next prime (20623003543).

It is a self number, because there is not a number n which added to its sum of digits gives 20623003530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343716696 + ... + 343716755.

It is an arithmetic number, because the mean of its divisors is an integer number (3093450534).

Almost surely, 2^20623003530 is an apocalyptic number.

20623003530 is an abundant number, since it is smaller than the sum of its proper divisors (28872205014).

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

20623003530 is a wasteful number, since it uses less digits than its factorization.

20623003530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687433461.

The product of its (nonzero) digits is 3240, while the sum is 24.

The spelling of 20623003530 in words is "twenty billion, six hundred twenty-three million, three thousand, five hundred thirty".