20067615550 has 96 divisors (see below), whose sum is σ = 38660382720. Its totient is φ = 7746710400.

The previous prime is 20067615527. The next prime is 20067615553. The reversal of 20067615550 is 5551676002.

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 47 ways as a sum of consecutive naturals, for example, 50547952 + ... + 50548348.

It is an arithmetic number, because the mean of its divisors is an integer number (402712320).

Almost surely, 2^20067615550 is an apocalyptic number.

20067615550 is a deficient number, since it is larger than the sum of its proper divisors (18592767170).

20067615550 is a wasteful number, since it uses less digits than its factorization.

20067615550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 741 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 20067615550 in words is "twenty billion, sixty-seven million, six hundred fifteen thousand, five hundred fifty".