11655215402003 has 4 divisors (see below), whose sum is σ = 11786172878520. Its totient is φ = 11524257925488.

The previous prime is 11655215401993. The next prime is 11655215402021. The reversal of 11655215402003 is 30020451255611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11655215402003 - 2¹⁸ = 11655215139859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11655215402203) 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, 65478738125 + ... + 65478738302.

It is an arithmetic number, because the mean of its divisors is an integer number (2946543219630).

Almost surely, 2^{11655215402003} is an apocalyptic number.

11655215402003 is a deficient number, since it is larger than the sum of its proper divisors (130957476517).

11655215402003 is an equidigital number, since it uses as much as digits as its factorization.

11655215402003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130957476516.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 11655215402003 its reverse (30020451255611), we get a palindrome (41675666657614).

The spelling of 11655215402003 in words is "eleven trillion, six hundred fifty-five billion, two hundred fifteen million, four hundred two thousand, three".