20354665530042 has 24 divisors (see below), whose sum is σ = 44101903263444. Its totient is φ = 6784868825664.

The previous prime is 20354665529971. The next prime is 20354665530137. The reversal of 20354665530042 is 24003556645302.

20354665530042 is a `hidden beast` number, since 2 + 0 + 3 + 54 + 6 + 6 + 553 + 0 + 0 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14081338805121 + 6273326724921 = 3752511^2 + 2504661^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20354665530042.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5600038 + ... + 8489390.

Almost surely, 2^{20354665530042} is an apocalyptic number.

20354665530042 is an abundant number, since it is smaller than the sum of its proper divisors (23747237733402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20354665530042 is a wasteful number, since it uses less digits than its factorization.

20354665530042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280734 (or 3280731 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 45.

The spelling of 20354665530042 in words is "twenty trillion, three hundred fifty-four billion, six hundred sixty-five million, five hundred thirty thousand, forty-two".