354641616321 has 4 divisors (see below), whose sum is σ = 472855488432. Its totient is φ = 236427744212.

The previous prime is 354641616317. The next prime is 354641616347. The reversal of 354641616321 is 123616146453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 354641616321 - 2² = 354641616317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (354641616311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 59106936051 + ... + 59106936056.

It is an arithmetic number, because the mean of its divisors is an integer number (118213872108).

Almost surely, 2^354641616321 is an apocalyptic number.

It is an amenable number.

354641616321 is a deficient number, since it is larger than the sum of its proper divisors (118213872111).

354641616321 is a wasteful number, since it uses less digits than its factorization.

354641616321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118213872110.

The product of its digits is 311040, while the sum is 42.

The spelling of 354641616321 in words is "three hundred fifty-four billion, six hundred forty-one million, six hundred sixteen thousand, three hundred twenty-one".