161322356053155 has 32 divisors (see below), whose sum is σ = 281745603659520. Its totient is φ = 78171132126080.

The previous prime is 161322356053147. The next prime is 161322356053213. The reversal of 161322356053155 is 551350653223161.

It is not a de Polignac number, because 161322356053155 - 2³ = 161322356053147 is a prime.

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, 285765777 + ... + 286329746.

It is an arithmetic number, because the mean of its divisors is an integer number (8804550114360).

Almost surely, 2^{161322356053155} is an apocalyptic number.

161322356053155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161322356053155 is a deficient number, since it is larger than the sum of its proper divisors (120423247606365).

161322356053155 is a wasteful number, since it uses less digits than its factorization.

161322356053155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572097251.

The product of its (nonzero) digits is 2430000, while the sum is 48.

The spelling of 161322356053155 in words is "one hundred sixty-one trillion, three hundred twenty-two billion, three hundred fifty-six million, fifty-three thousand, one hundred fifty-five".