1663326245 has 8 divisors (see below), whose sum is σ = 2281133184. Its totient is φ = 1140566544.

The previous prime is 1663326241. The next prime is 1663326283. The reversal of 1663326245 is 5426233661.

It is a happy number.

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 1663326245 - 2² = 1663326241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1663326199 and 1663326208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663326241) 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, 23761769 + ... + 23761838.

It is an arithmetic number, because the mean of its divisors is an integer number (285141648).

Almost surely, 2^1663326245 is an apocalyptic number.

It is an amenable number.

1663326245 is a deficient number, since it is larger than the sum of its proper divisors (617806939).

1663326245 is an equidigital number, since it uses as much as digits as its factorization.

1663326245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47523619.

The product of its digits is 155520, while the sum is 38.

The square root of 1663326245 is about 40783.8968834514. The cubic root of 1663326245 is about 1184.8384701520.

The spelling of 1663326245 in words is "one billion, six hundred sixty-three million, three hundred twenty-six thousand, two hundred forty-five".