663211702045 has 16 divisors (see below), whose sum is σ = 837871295040. Its totient is φ = 502566539904.

The previous prime is 663211701991. The next prime is 663211702081. The reversal of 663211702045 is 540207112366.

It is a cyclic number.

It is not a de Polignac number, because 663211702045 - 2³³ = 654621767453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 663211701995 and 663211702013.

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, 75682 + ... + 1154188.

It is an arithmetic number, because the mean of its divisors is an integer number (52366955940).

Almost surely, 2^663211702045 is an apocalyptic number.

It is an amenable number.

663211702045 is a deficient number, since it is larger than the sum of its proper divisors (174659592995).

663211702045 is a wasteful number, since it uses less digits than its factorization.

663211702045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085004.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 663211702045 in words is "six hundred sixty-three billion, two hundred eleven million, seven hundred two thousand, forty-five".