505201005664 has 12 divisors (see below), whose sum is σ = 994614479964. Its totient is φ = 252600502816.

The previous prime is 505201005643. The next prime is 505201005703. The reversal of 505201005664 is 466500102505.

It is a super-2 number, since 2×505201005664² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7893765682 + ... + 7893765745.

It is an arithmetic number, because the mean of its divisors is an integer number (82884539997).

Almost surely, 2^505201005664 is an apocalyptic number.

It is an amenable number.

505201005664 is a deficient number, since it is larger than the sum of its proper divisors (489413474300).

505201005664 is a wasteful number, since it uses less digits than its factorization.

505201005664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15787531437 (or 15787531429 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 505201005664 in words is "five hundred five billion, two hundred one million, five thousand, six hundred sixty-four".