353520201994 has 8 divisors (see below), whose sum is σ = 530765466660. Its totient is φ = 176598379776.

The previous prime is 353520201971. The next prime is 353520202001. The reversal of 353520201994 is 499102025353.

It can be written as a sum of positive squares in 2 ways, for example, as 229309772769 + 124210429225 = 478863^2 + 352435^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 353520201994.

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 3 ways as a sum of consecutive naturals, for example, 80857879 + ... + 80862250.

Almost surely, 2^353520201994 is an apocalyptic number.

353520201994 is a deficient number, since it is larger than the sum of its proper divisors (177245264666).

353520201994 is a wasteful number, since it uses less digits than its factorization.

353520201994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161721224.

The product of its (nonzero) digits is 291600, while the sum is 43.

The spelling of 353520201994 in words is "three hundred fifty-three billion, five hundred twenty million, two hundred one thousand, nine hundred ninety-four".