354223661543 has 8 divisors (see below), whose sum is σ = 359669217600. Its totient is φ = 348802148448.

The previous prime is 354223661527. The next prime is 354223661657. The reversal of 354223661543 is 345166322453.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 354223661543 - 2⁴ = 354223661527 is a prime.

It is a super-3 number, since 3×354223661543³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 354223661494 and 354223661503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354223661843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5981048 + ... + 6039981.

It is an arithmetic number, because the mean of its divisors is an integer number (44958652200).

Almost surely, 2^354223661543 is an apocalyptic number.

354223661543 is a deficient number, since it is larger than the sum of its proper divisors (5445556057).

354223661543 is a wasteful number, since it uses less digits than its factorization.

354223661543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12021481.

The product of its digits is 1555200, while the sum is 44.

Adding to 354223661543 its reverse (345166322453), we get a palindrome (699389983996).

The spelling of 354223661543 in words is "three hundred fifty-four billion, two hundred twenty-three million, six hundred sixty-one thousand, five hundred forty-three".