351583856660 has 24 divisors (see below), whose sum is σ = 738501359400. Its totient is φ = 140600159744.

The previous prime is 351583856639. The next prime is 351583856677. The reversal of 351583856660 is 66658385153.

It can be written as a sum of positive squares in 4 ways, for example, as 53943778564 + 297640078096 = 232258^2 + 545564^2 .

It is a super-2 number, since 2×351583856660² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 351583856596 and 351583856605.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1999985 + ... + 2168664.

It is an arithmetic number, because the mean of its divisors is an integer number (30770889975).

Almost surely, 2^351583856660 is an apocalyptic number.

It is an amenable number.

351583856660 is an abundant number, since it is smaller than the sum of its proper divisors (386917502740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351583856660 is a wasteful number, since it uses less digits than its factorization.

351583856660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172875 (or 4172873 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 351583856660 in words is "three hundred fifty-one billion, five hundred eighty-three million, eight hundred fifty-six thousand, six hundred sixty".