501606665662 has 16 divisors (see below), whose sum is σ = 755156520000. Its totient is φ = 249887989120.

The previous prime is 501606665657. The next prime is 501606665663. The reversal of 501606665662 is 266566606105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501606665663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7299339 + ... + 7367737.

It is an arithmetic number, because the mean of its divisors is an integer number (47197282500).

Almost surely, 2^501606665662 is an apocalyptic number.

501606665662 is a deficient number, since it is larger than the sum of its proper divisors (253549854338).

501606665662 is a wasteful number, since it uses less digits than its factorization.

501606665662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81731.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 501606665662 in words is "five hundred one billion, six hundred six million, six hundred sixty-five thousand, six hundred sixty-two".