353439320661 has 12 divisors (see below), whose sum is σ = 583455386592. Its totient is φ = 201965326056.

The previous prime is 353439320659. The next prime is 353439320693. The reversal of 353439320661 is 166023934353.

353439320661 is a `hidden beast` number, since 3 + 5 + 3 + 439 + 3 + 206 + 6 + 1 = 666.

It is not a de Polignac number, because 353439320661 - 2¹ = 353439320659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353439320621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2805073911 + ... + 2805074036.

It is an arithmetic number, because the mean of its divisors is an integer number (48621282216).

Almost surely, 2^353439320661 is an apocalyptic number.

It is an amenable number.

353439320661 is a deficient number, since it is larger than the sum of its proper divisors (230016065931).

353439320661 is a wasteful number, since it uses less digits than its factorization.

353439320661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5610147960 (or 5610147957 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 45.

The spelling of 353439320661 in words is "three hundred fifty-three billion, four hundred thirty-nine million, three hundred twenty thousand, six hundred sixty-one".