20067615552 has 56 divisors (see below), whose sum is σ = 55404081216. Its totient is φ = 6398368768.

The previous prime is 20067615527. The next prime is 20067615553. The reversal of 20067615552 is 25551676002.

It is a self number, because there is not a number n which added to its sum of digits gives 20067615552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20067615553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2267733 + ... + 2276564.

Almost surely, 2^20067615552 is an apocalyptic number.

It is an amenable number.

20067615552 is an abundant number, since it is smaller than the sum of its proper divisors (35336465664).

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

20067615552 is a wasteful number, since it uses less digits than its factorization.

20067615552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4544335 (or 4544325 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 20067615552 in words is "twenty billion, sixty-seven million, six hundred fifteen thousand, five hundred fifty-two".