12020771507485 has 8 divisors (see below), whose sum is σ = 15534535486680. Its totient is φ = 8876877420864.

The previous prime is 12020771507453. The next prime is 12020771507497. The reversal of 12020771507485 is 58470517702021.

It can be written as a sum of positive squares in 4 ways, for example, as 1116207041049 + 10904564466436 = 1056507^2 + 3302206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12020771507485 - 2⁵ = 12020771507453 is a prime.

It is a super-2 number, since 2×12020771507485² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 92467473070 + ... + 92467473199.

It is an arithmetic number, because the mean of its divisors is an integer number (1941816935835).

Almost surely, 2^{12020771507485} is an apocalyptic number.

It is an amenable number.

12020771507485 is a deficient number, since it is larger than the sum of its proper divisors (3513763979195).

12020771507485 is a wasteful number, since it uses less digits than its factorization.

12020771507485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184934946287.

The product of its (nonzero) digits is 1097600, while the sum is 49.

The spelling of 12020771507485 in words is "twelve trillion, twenty billion, seven hundred seventy-one million, five hundred seven thousand, four hundred eighty-five".