1073615663 has 4 divisors (see below), whose sum is σ = 1073684088. Its totient is φ = 1073547240.

The previous prime is 1073615657. The next prime is 1073615681. The reversal of 1073615663 is 3665163701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1073615663 - 2¹⁰ = 1073614639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073615623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2345 + ... + 46397.

It is an arithmetic number, because the mean of its divisors is an integer number (268421022).

Almost surely, 2^1073615663 is an apocalyptic number.

1073615663 is a deficient number, since it is larger than the sum of its proper divisors (68425).

1073615663 is an equidigital number, since it uses as much as digits as its factorization.

1073615663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68424.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 1073615663 is about 32766.0748793626. The cubic root of 1073615663 is about 1023.9598929273.

The spelling of 1073615663 in words is "one billion, seventy-three million, six hundred fifteen thousand, six hundred sixty-three".