339353979561 has 12 divisors (see below), whose sum is σ = 491140998660. Its totient is φ = 225791511840.

The previous prime is 339353979551. The next prime is 339353979631. The reversal of 339353979561 is 165979353933.

339353979561 is a `hidden beast` number, since 3 + 3 + 9 + 3 + 539 + 7 + 95 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 197330519961 + 142023459600 = 444219^2 + 376860^2 .

It is not a de Polignac number, because 339353979561 - 2²¹ = 339351882409 is a prime.

It is a super-2 number, since 2×339353979561² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (339353979511) 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 11 ways as a sum of consecutive naturals, for example, 37034710 + ... + 37043871.

It is an arithmetic number, because the mean of its divisors is an integer number (40928416555).

Almost surely, 2^339353979561 is an apocalyptic number.

It is an amenable number.

339353979561 is a deficient number, since it is larger than the sum of its proper divisors (151787019099).

339353979561 is a wasteful number, since it uses less digits than its factorization.

339353979561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74079096 (or 74079093 counting only the distinct ones).

The product of its digits is 62001450, while the sum is 63.

The spelling of 339353979561 in words is "three hundred thirty-nine billion, three hundred fifty-three million, nine hundred seventy-nine thousand, five hundred sixty-one".