20353336027647 has 32 divisors (see below), whose sum is σ = 31528863140352. Its totient is φ = 11438198158464.

The previous prime is 20353336027631. The next prime is 20353336027721. The reversal of 20353336027647 is 74672063335302.

It is not a de Polignac number, because 20353336027647 - 2⁴ = 20353336027631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20353336027647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20353336027147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10936668 + ... + 12661649.

It is an arithmetic number, because the mean of its divisors is an integer number (985276973136).

Almost surely, 2^{20353336027647} is an apocalyptic number.

20353336027647 is a deficient number, since it is larger than the sum of its proper divisors (11175527112705).

20353336027647 is a wasteful number, since it uses less digits than its factorization.

20353336027647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23599007.

The product of its (nonzero) digits is 11430720, while the sum is 51.

The spelling of 20353336027647 in words is "twenty trillion, three hundred fifty-three billion, three hundred thirty-six million, twenty-seven thousand, six hundred forty-seven".