354243505161 has 48 divisors (see below), whose sum is σ = 595675080000. Its totient is φ = 185599516032.

The previous prime is 354243505157. The next prime is 354243505163. The reversal of 354243505161 is 161505342453.

It is a happy number.

It is not a de Polignac number, because 354243505161 - 2² = 354243505157 is a prime.

It is a super-3 number, since 3×354243505161³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (354243505163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 337311 + ... + 906788.

It is an arithmetic number, because the mean of its divisors is an integer number (12409897500).

Almost surely, 2^354243505161 is an apocalyptic number.

It is an amenable number.

354243505161 is a deficient number, since it is larger than the sum of its proper divisors (241431574839).

354243505161 is a wasteful number, since it uses less digits than its factorization.

354243505161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244278 (or 1244271 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 354243505161 in words is "three hundred fifty-four billion, two hundred forty-three million, five hundred five thousand, one hundred sixty-one".