355040663 has 4 divisors (see below), whose sum is σ = 355108248. Its totient is φ = 354973080.

The previous prime is 355040657. The next prime is 355040681. The reversal of 355040663 is 366040553.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366040553 = 43 ⋅8512571.

It is a cyclic number.

It is not a de Polignac number, because 355040663 - 2⁶ = 355040599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355040263) 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 3 ways as a sum of consecutive naturals, for example, 25181 + ... + 36662.

It is an arithmetic number, because the mean of its divisors is an integer number (88777062).

Almost surely, 2^355040663 is an apocalyptic number.

355040663 is a deficient number, since it is larger than the sum of its proper divisors (67585).

355040663 is an equidigital number, since it uses as much as digits as its factorization.

355040663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67584.

The product of its (nonzero) digits is 32400, while the sum is 32.

The square root of 355040663 is about 18842.5227344960. The cubic root of 355040663 is about 708.0969090485.

The spelling of 355040663 in words is "three hundred fifty-five million, forty thousand, six hundred sixty-three".