350551220647 has 4 divisors (see below), whose sum is σ = 350561359720. Its totient is φ = 350541081576.

The previous prime is 350551220639. The next prime is 350551220653. The reversal of 350551220647 is 746022155053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746022155053 = 7 ⋅106574593579.

It is a cyclic number.

It is not a de Polignac number, because 350551220647 - 2³ = 350551220639 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 (350551220687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5017497 + ... + 5086882.

It is an arithmetic number, because the mean of its divisors is an integer number (87640339930).

Almost surely, 2^350551220647 is an apocalyptic number.

350551220647 is a deficient number, since it is larger than the sum of its proper divisors (10139073).

350551220647 is a wasteful number, since it uses less digits than its factorization.

350551220647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10139072.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 350551220647 in words is "three hundred fifty billion, five hundred fifty-one million, two hundred twenty thousand, six hundred forty-seven".