205502150004 has 24 divisors (see below), whose sum is σ = 479591460768. Its totient is φ = 68488367520.

The previous prime is 205502149999. The next prime is 205502150057. The reversal of 205502150004 is 400051205502.

It is a happy number.

It is a super-2 number, since 2×205502150004² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1474182 + ... + 1607549.

It is an arithmetic number, because the mean of its divisors is an integer number (19982977532).

Almost surely, 2^205502150004 is an apocalyptic number.

It is an amenable number.

205502150004 is an abundant number, since it is smaller than the sum of its proper divisors (274089310764).

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

205502150004 is a wasteful number, since it uses less digits than its factorization.

205502150004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3087295 (or 3087293 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

Adding to 205502150004 its reverse (400051205502), we get a palindrome (605553355506).

The spelling of 205502150004 in words is "two hundred five billion, five hundred two million, one hundred fifty thousand, four".