20385587151 has 6 divisors (see below), whose sum is σ = 29445848120. Its totient is φ = 13590391428.

The previous prime is 20385587143. The next prime is 20385587231. The reversal of 20385587151 is 15178558302.

20385587151 is a `hidden beast` number, since 20 + 3 + 8 + 558 + 71 + 5 + 1 = 666.

It is not a de Polignac number, because 20385587151 - 2³ = 20385587143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20385587097 and 20385587106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20385588151) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1132532611 + ... + 1132532628.

Almost surely, 2^20385587151 is an apocalyptic number.

20385587151 is a deficient number, since it is larger than the sum of its proper divisors (9060260969).

20385587151 is a wasteful number, since it uses less digits than its factorization.

20385587151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265065245 (or 2265065242 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 45.

The spelling of 20385587151 in words is "twenty billion, three hundred eighty-five million, five hundred eighty-seven thousand, one hundred fifty-one".