163091097455 has 32 divisors (see below), whose sum is σ = 229982699520. Its totient is φ = 109459889280.

The previous prime is 163091097437. The next prime is 163091097529. The reversal of 163091097455 is 554790190361.

It is not a de Polignac number, because 163091097455 - 2⁶ = 163091097391 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3006866 + ... + 3060624.

It is an arithmetic number, because the mean of its divisors is an integer number (7186959360).

Almost surely, 2^163091097455 is an apocalyptic number.

163091097455 is a deficient number, since it is larger than the sum of its proper divisors (66891602065).

163091097455 is a wasteful number, since it uses less digits than its factorization.

163091097455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58031.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The spelling of 163091097455 in words is "one hundred sixty-three billion, ninety-one million, ninety-seven thousand, four hundred fifty-five".