20352161532154 has 8 divisors (see below), whose sum is σ = 30661553400660. Its totient is φ = 10131643731936.

The previous prime is 20352161532121. The next prime is 20352161532163. The reversal of 20352161532154 is 45123516125302.

It can be written as a sum of positive squares in 2 ways, for example, as 14188744572025 + 6163416960129 = 3766795^2 + 2482623^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22218516499 + ... + 22218517414.

Almost surely, 2^{20352161532154} is an apocalyptic number.

20352161532154 is a deficient number, since it is larger than the sum of its proper divisors (10309391868506).

20352161532154 is a wasteful number, since it uses less digits than its factorization.

20352161532154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44437034144.

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 20352161532154 its reverse (45123516125302), we get a palindrome (65475677657456).

The spelling of 20352161532154 in words is "twenty trillion, three hundred fifty-two billion, one hundred sixty-one million, five hundred thirty-two thousand, one hundred fifty-four".