505602500666 has 16 divisors (see below), whose sum is σ = 792778122240. Its totient is φ = 241549579440.

The previous prime is 505602500659. The next prime is 505602500671. The reversal of 505602500666 is 666005206505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51608261 + ... + 51618056.

It is an arithmetic number, because the mean of its divisors is an integer number (49548632640).

Almost surely, 2^505602500666 is an apocalyptic number.

505602500666 is a deficient number, since it is larger than the sum of its proper divisors (287175621574).

505602500666 is a wasteful number, since it uses less digits than its factorization.

505602500666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103226429.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 505602500666 in words is "five hundred five billion, six hundred two million, five hundred thousand, six hundred sixty-six".