20330652520 has 16 divisors (see below), whose sum is σ = 45743968260. Its totient is φ = 8132260992.

The previous prime is 20330652487. The next prime is 20330652553. The reversal of 20330652520 is 2525603302.

It is an interprime number because it is at equal distance from previous prime (20330652487) and next prime (20330652553).

It can be written as a sum of positive squares in 2 ways, for example, as 20310240196 + 20412324 = 142514^2 + 4518^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254133117 + ... + 254133196.

Almost surely, 2^20330652520 is an apocalyptic number.

20330652520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330652520 is an abundant number, since it is smaller than the sum of its proper divisors (25413315740).

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

20330652520 is a wasteful number, since it uses less digits than its factorization.

20330652520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508266324 (or 508266320 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 20330652520 in words is "twenty billion, three hundred thirty million, six hundred fifty-two thousand, five hundred twenty".