20675552591232 has 768 divisors, whose sum is σ = 77451041341440. Its totient is φ = 5133528576000.

The previous prime is 20675552591231. The next prime is 20675552591233. The reversal of 20675552591232 is 23219525557602.

20675552591232 is a `hidden beast` number, since 2 + 0 + 6 + 7 + 5 + 5 + 525 + 91 + 23 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (20675552591231) and next prime (20675552591233).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675552591231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5694174057 + ... + 5694177687.

It is an arithmetic number, because the mean of its divisors is an integer number (100847710080).

Almost surely, 2^{20675552591232} is an apocalyptic number.

20675552591232 is a gapful number since it is divisible by the number (22) 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 20675552591232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38725520670720).

20675552591232 is an abundant number, since it is smaller than the sum of its proper divisors (56775488750208).

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

20675552591232 is a wasteful number, since it uses less digits than its factorization.

20675552591232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483 (or 6468 counting only the distinct ones).

The product of its (nonzero) digits is 11340000, while the sum is 54.

The spelling of 20675552591232 in words is "twenty trillion, six hundred seventy-five billion, five hundred fifty-two million, five hundred ninety-one thousand, two hundred thirty-two".