20710572480 has 280 divisors, whose sum is σ = 79339452192. Its totient is φ = 5097904128.

The previous prime is 20710572469. The next prime is 20710572499. The reversal of 20710572480 is 8427501702.

20710572480 is a `hidden beast` number, since 2 + 0 + 7 + 1 + 0 + 572 + 4 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 306229 + ... + 367691.

Almost surely, 2^20710572480 is an apocalyptic number.

20710572480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20710572480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39669726096).

20710572480 is an abundant number, since it is smaller than the sum of its proper divisors (58628879712).

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

20710572480 is a wasteful number, since it uses less digits than its factorization.

20710572480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61505 (or 61486 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The spelling of 20710572480 in words is "twenty billion, seven hundred ten million, five hundred seventy-two thousand, four hundred eighty".