351350043561 has 12 divisors (see below), whose sum is σ = 553642493040. Its totient is φ = 212939420280.

The previous prime is 351350043553. The next prime is 351350043581. The reversal of 351350043561 is 165340053153.

351350043561 is a `hidden beast` number, since 3 + 5 + 1 + 3 + 50 + 0 + 43 + 561 = 666.

It is not a de Polignac number, because 351350043561 - 2³ = 351350043553 is a prime.

It is a super-3 number, since 3×351350043561³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (351350043581) 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, 1774495071 + ... + 1774495268.

It is an arithmetic number, because the mean of its divisors is an integer number (46136874420).

Almost surely, 2^351350043561 is an apocalyptic number.

It is an amenable number.

351350043561 is a deficient number, since it is larger than the sum of its proper divisors (202292449479).

351350043561 is a wasteful number, since it uses less digits than its factorization.

351350043561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548990356 (or 3548990353 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 351350043561 in words is "three hundred fifty-one billion, three hundred fifty million, forty-three thousand, five hundred sixty-one".