663421164662 has 32 divisors (see below), whose sum is σ = 1010180808000. Its totient is φ = 326741731200.

The previous prime is 663421164631. The next prime is 663421164677. The reversal of 663421164662 is 266461124366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19346612 + ... + 19380872.

It is an arithmetic number, because the mean of its divisors is an integer number (31568150250).

Almost surely, 2^663421164662 is an apocalyptic number.

663421164662 is a deficient number, since it is larger than the sum of its proper divisors (346759643338).

663421164662 is a wasteful number, since it uses less digits than its factorization.

663421164662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34952.

The product of its digits is 1492992, while the sum is 47.

The spelling of 663421164662 in words is "six hundred sixty-three billion, four hundred twenty-one million, one hundred sixty-four thousand, six hundred sixty-two".