351620453561 has 8 divisors (see below), whose sum is σ = 395132015040. Its totient is φ = 310460868432.

The previous prime is 351620453519. The next prime is 351620453599. The reversal of 351620453561 is 165354026153.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 351620453561 - 2⁶ = 351620453497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351620453861) 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, 587993771 + ... + 587994368.

It is an arithmetic number, because the mean of its divisors is an integer number (49391501880).

Almost surely, 2^351620453561 is an apocalyptic number.

It is an amenable number.

351620453561 is a deficient number, since it is larger than the sum of its proper divisors (43511561479).

351620453561 is a wasteful number, since it uses less digits than its factorization.

351620453561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175988175.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 351620453561 in words is "three hundred fifty-one billion, six hundred twenty million, four hundred fifty-three thousand, five hundred sixty-one".