20275620824 has 16 divisors (see below), whose sum is σ = 39044270400. Its totient is φ = 9863815392.

The previous prime is 20275620797. The next prime is 20275620851. The reversal of 20275620824 is 42802657202.

It is an interprime number because it is at equal distance from previous prime (20275620797) and next prime (20275620851).

It is a super-2 number, since 2×20275620824² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 34249064 + ... + 34249655.

It is an arithmetic number, because the mean of its divisors is an integer number (2440266900).

Almost surely, 2^20275620824 is an apocalyptic number.

It is an amenable number.

20275620824 is a deficient number, since it is larger than the sum of its proper divisors (18768649576).

20275620824 is a wasteful number, since it uses less digits than its factorization.

20275620824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68498762 (or 68498758 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 20275620824 in words is "twenty billion, two hundred seventy-five million, six hundred twenty thousand, eight hundred twenty-four".