663470051770 has 32 divisors (see below), whose sum is σ = 1249061368320. Its totient is φ = 253260395520.

The previous prime is 663470051753. The next prime is 663470051791. The reversal of 663470051770 is 77150074366.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a self number, because there is not a number n which added to its sum of digits gives 663470051770.

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, 3247335 + ... + 3445594.

It is an arithmetic number, because the mean of its divisors is an integer number (39033167760).

Almost surely, 2^663470051770 is an apocalyptic number.

663470051770 is a deficient number, since it is larger than the sum of its proper divisors (585591316550).

663470051770 is a wasteful number, since it uses less digits than its factorization.

663470051770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6693390.

The product of its (nonzero) digits is 740880, while the sum is 46.

The spelling of 663470051770 in words is "six hundred sixty-three billion, four hundred seventy million, fifty-one thousand, seven hundred seventy".