161135266003 has 8 divisors (see below), whose sum is σ = 172950987888. Its totient is φ = 149579230464.

The previous prime is 161135265979. The next prime is 161135266073. The reversal of 161135266003 is 300662531161.

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 161135266003 - 2¹⁷ = 161135134931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161135266003.

It is not an unprimeable number, because it can be changed into a prime (161135266073) 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, 64920301 + ... + 64922782.

It is an arithmetic number, because the mean of its divisors is an integer number (21618873486).

Almost surely, 2^161135266003 is an apocalyptic number.

161135266003 is a deficient number, since it is larger than the sum of its proper divisors (11815721885).

161135266003 is a wasteful number, since it uses less digits than its factorization.

161135266003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129843173.

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 161135266003 its reverse (300662531161), we get a palindrome (461797797164).

The spelling of 161135266003 in words is "one hundred sixty-one billion, one hundred thirty-five million, two hundred sixty-six thousand, three".