20353274404066 has 16 divisors (see below), whose sum is σ = 30627705339000. Its totient is φ = 10144058940288.

The previous prime is 20353274404039. The next prime is 20353274404079. The reversal of 20353274404066 is 66040447235302.

It can be written as a sum of positive squares in 4 ways, for example, as 14433761074041 + 5919513330025 = 3799179^2 + 2433005^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2838285 + ... + 6983008.

Almost surely, 2^{20353274404066} is an apocalyptic number.

20353274404066 is a deficient number, since it is larger than the sum of its proper divisors (10274430934934).

20353274404066 is a wasteful number, since it uses less digits than its factorization.

20353274404066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824613.

The product of its (nonzero) digits is 2903040, while the sum is 46.

The spelling of 20353274404066 in words is "twenty trillion, three hundred fifty-three billion, two hundred seventy-four million, four hundred four thousand, sixty-six".