161103356415 has 48 divisors (see below), whose sum is σ = 290947977216. Its totient is φ = 82372939200.

The previous prime is 161103356387. The next prime is 161103356431. The reversal of 161103356415 is 514653301161.

161103356415 is a `hidden beast` number, since 1 + 6 + 1 + 1 + 0 + 3 + 3 + 5 + 641 + 5 = 666.

It is not a de Polignac number, because 161103356415 - 2⁵ = 161103356383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161103356415.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 390391 + ... + 688920.

It is an arithmetic number, because the mean of its divisors is an integer number (6061416192).

Almost surely, 2^161103356415 is an apocalyptic number.

161103356415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161103356415 is a deficient number, since it is larger than the sum of its proper divisors (129844620801).

161103356415 is a wasteful number, since it uses less digits than its factorization.

161103356415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079460 (or 1079457 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 161103356415 its reverse (514653301161), we get a palindrome (675756657576).

The spelling of 161103356415 in words is "one hundred sixty-one billion, one hundred three million, three hundred fifty-six thousand, four hundred fifteen".