351232636661 has 8 divisors (see below), whose sum is σ = 371936573784. Its totient is φ = 330533498880.

The previous prime is 351232636633. The next prime is 351232636709. The reversal of 351232636661 is 166636232153.

It can be written as a sum of positive squares in 4 ways, for example, as 65548800625 + 285683836036 = 256025^2 + 534494^2 .

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 351232636661 - 2⁶ = 351232636597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351232636861) 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, 1048610 + ... + 1342403.

It is an arithmetic number, because the mean of its divisors is an integer number (46492071723).

Almost surely, 2^351232636661 is an apocalyptic number.

It is an amenable number.

351232636661 is a deficient number, since it is larger than the sum of its proper divisors (20703937123).

351232636661 is a wasteful number, since it uses less digits than its factorization.

351232636661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399671.

The product of its digits is 699840, while the sum is 44.

The spelling of 351232636661 in words is "three hundred fifty-one billion, two hundred thirty-two million, six hundred thirty-six thousand, six hundred sixty-one".