1015660103663 has 8 divisors (see below), whose sum is σ = 1023141144432. Its totient is φ = 1008180040896.

The previous prime is 1015660103641. The next prime is 1015660103671. The reversal of 1015660103663 is 3663010665101.

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 1015660103663 - 2⁶ = 1015660103599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015660123663) 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, 1909781 + ... + 2382977.

It is an arithmetic number, because the mean of its divisors is an integer number (127892643054).

Almost surely, 2^{1015660103663} is an apocalyptic number.

1015660103663 is a deficient number, since it is larger than the sum of its proper divisors (7481040769).

1015660103663 is a wasteful number, since it uses less digits than its factorization.

1015660103663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489001.

The product of its (nonzero) digits is 58320, while the sum is 38.

Adding to 1015660103663 its reverse (3663010665101), we get a palindrome (4678670768764).

The spelling of 1015660103663 in words is "one trillion, fifteen billion, six hundred sixty million, one hundred three thousand, six hundred sixty-three".