20354740566052 has 12 divisors (see below), whose sum is σ = 37716136931340. Its totient is φ = 9578701442816.

The previous prime is 20354740566037. The next prime is 20354740566071. The reversal of 20354740566052 is 25066504745302.

It can be written as a sum of positive squares in 2 ways, for example, as 8536588001536 + 11818152564516 = 2921744^2 + 3437754^2 .

It is a super-2 number, since 2×20354740566052² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20354740565987 and 20354740566005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149667209977 + ... + 149667210112.

It is an arithmetic number, because the mean of its divisors is an integer number (3143011410945).

Almost surely, 2^{20354740566052} is an apocalyptic number.

It is an amenable number.

20354740566052 is a deficient number, since it is larger than the sum of its proper divisors (17361396365288).

20354740566052 is a wasteful number, since it uses less digits than its factorization.

20354740566052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299334420110 (or 299334420108 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 49.

The spelling of 20354740566052 in words is "twenty trillion, three hundred fifty-four billion, seven hundred forty million, five hundred sixty-six thousand, fifty-two".