1663046245 has 16 divisors (see below), whose sum is σ = 2301678720. Its totient is φ = 1129909824.

The previous prime is 1663046239. The next prime is 1663046249. The reversal of 1663046245 is 5426403661.

It is a cyclic number.

It is not a de Polignac number, because 1663046245 - 2⁵ = 1663046213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663046249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214147 + ... + 221776.

It is an arithmetic number, because the mean of its divisors is an integer number (143854920).

Almost surely, 2^1663046245 is an apocalyptic number.

It is an amenable number.

1663046245 is a deficient number, since it is larger than the sum of its proper divisors (638632475).

1663046245 is a wasteful number, since it uses less digits than its factorization.

1663046245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436044.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 1663046245 is about 40780.4640115828. The cubic root of 1663046245 is about 1184.7719822156.

The spelling of 1663046245 in words is "one billion, six hundred sixty-three million, forty-six thousand, two hundred forty-five".