663214045 has 8 divisors (see below), whose sum is σ = 857076696. Its totient is φ = 489758016.

The previous prime is 663214043. The next prime is 663214067. The reversal of 663214045 is 540412366.

It can be written as a sum of positive squares in 4 ways, for example, as 33304441 + 629909604 = 5771^2 + 25098^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 663214045 - 2¹ = 663214043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 663213998 and 663214016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663214043) 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, 5101582 + ... + 5101711.

It is an arithmetic number, because the mean of its divisors is an integer number (107134587).

Almost surely, 2^663214045 is an apocalyptic number.

663214045 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

663214045 is a deficient number, since it is larger than the sum of its proper divisors (193862651).

663214045 is a wasteful number, since it uses less digits than its factorization.

663214045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10203311.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 663214045 is about 25752.9424532421. The cubic root of 663214045 is about 872.0697823998.

The spelling of 663214045 in words is "six hundred sixty-three million, two hundred fourteen thousand, forty-five".