20067657122 has 6 divisors (see below), whose sum is σ = 30101786193. Its totient is φ = 10033728392.

The previous prime is 20067657121. The next prime is 20067657131. The reversal of 20067657122 is 22175676002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12082626241 + 7985030881 = 109921^2 + 89359^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=100169.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20067657121) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 150254 + ... + 250422.

Almost surely, 2^20067657122 is an apocalyptic number.

20067657122 is a deficient number, since it is larger than the sum of its proper divisors (10034129071).

20067657122 is an frugal number, since it uses more digits than its factorization.

20067657122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200340 (or 100171 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 20067657122 in words is "twenty billion, sixty-seven million, six hundred fifty-seven thousand, one hundred twenty-two".