1615161112003 has 4 divisors (see below), whose sum is σ = 1618450646328. Its totient is φ = 1611871577680.

The previous prime is 1615161111989. The next prime is 1615161112013. The reversal of 1615161112003 is 3002111615161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1615161112003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1615161112013) 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, 1644766426 + ... + 1644767407.

It is an arithmetic number, because the mean of its divisors is an integer number (404612661582).

Almost surely, 2^{1615161112003} is an apocalyptic number.

1615161112003 is a deficient number, since it is larger than the sum of its proper divisors (3289534325).

1615161112003 is an equidigital number, since it uses as much as digits as its factorization.

1615161112003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289534324.

The product of its (nonzero) digits is 1080, while the sum is 28.

Adding to 1615161112003 its reverse (3002111615161), we get a palindrome (4617272727164).

The spelling of 1615161112003 in words is "one trillion, six hundred fifteen billion, one hundred sixty-one million, one hundred twelve thousand, three".