505236660004 has 6 divisors (see below), whose sum is σ = 884164155014. Its totient is φ = 252618330000.

The previous prime is 505236659989. The next prime is 505236660011. The reversal of 505236660004 is 400066632505.

It can be written as a sum of positive squares in only one way, i.e., 329650519104 + 175586140900 = 574152^2 + 419030^2 .

It is a super-2 number, since 2×505236660004² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63154582497 + ... + 63154582504.

Almost surely, 2^505236660004 is an apocalyptic number.

It is an amenable number.

505236660004 is a deficient number, since it is larger than the sum of its proper divisors (378927495010).

505236660004 is a wasteful number, since it uses less digits than its factorization.

505236660004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126309165005 (or 126309165003 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 505236660004 in words is "five hundred five billion, two hundred thirty-six million, six hundred sixty thousand, four".