20304420152535 has 160 divisors (see below), whose sum is σ = 36985551020352. Its totient is φ = 10655629885440.

The previous prime is 20304420152519. The next prime is 20304420152557. The reversal of 20304420152535 is 53525102440302.

20304420152535 is a `hidden beast` number, since 2 + 0 + 30 + 4 + 42 + 0 + 1 + 52 + 535 = 666.

It is not a de Polignac number, because 20304420152535 - 2⁴ = 20304420152519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20304420152535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 6866559277 + ... + 6866562233.

Almost surely, 2^{20304420152535} is an apocalyptic number.

20304420152535 is a deficient number, since it is larger than the sum of its proper divisors (16681130867817).

20304420152535 is a wasteful number, since it uses less digits than its factorization.

20304420152535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095 (or 4086 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 20304420152535 its reverse (53525102440302), we get a palindrome (73829522592837).

The spelling of 20304420152535 in words is "twenty trillion, three hundred four billion, four hundred twenty million, one hundred fifty-two thousand, five hundred thirty-five".