20146635355732 has 24 divisors (see below), whose sum is σ = 37333907190720. Its totient is φ = 9479911935360.

The previous prime is 20146635355727. The next prime is 20146635355733. The reversal of 20146635355732 is 23755353664102.

It is a self number, because there is not a number n which added to its sum of digits gives 20146635355732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146635355733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12643144 + ... + 14147167.

It is an arithmetic number, because the mean of its divisors is an integer number (1555579466280).

Almost surely, 2^{20146635355732} is an apocalyptic number.

It is an amenable number.

20146635355732 is a deficient number, since it is larger than the sum of its proper divisors (17187271834988).

20146635355732 is a wasteful number, since it uses less digits than its factorization.

20146635355732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26801391 (or 26801389 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 52.

The spelling of 20146635355732 in words is "twenty trillion, one hundred forty-six billion, six hundred thirty-five million, three hundred fifty-five thousand, seven hundred thirty-two".