1001016663 has 8 divisors (see below), whose sum is σ = 1351584000. Its totient is φ = 658896888.

The previous prime is 1001016647. The next prime is 1001016683. The reversal of 1001016663 is 3666101001.

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

It is not a de Polignac number, because 1001016663 - 2⁴ = 1001016647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001016683) 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, 2111613 + ... + 2112086.

It is an arithmetic number, because the mean of its divisors is an integer number (168948000).

Almost surely, 2^1001016663 is an apocalyptic number.

1001016663 is a deficient number, since it is larger than the sum of its proper divisors (350567337).

1001016663 is an equidigital number, since it uses as much as digits as its factorization.

1001016663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4223781.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1001016663 is about 31638.8473715463. The cubic root of 1001016663 is about 1000.3387728866.

Adding to 1001016663 its reverse (3666101001), we get a palindrome (4667117664).

The spelling of 1001016663 in words is "one billion, one million, sixteen thousand, six hundred sixty-three".