646036052222343 has 4 divisors (see below), whose sum is σ = 861381402963128. Its totient is φ = 430690701481560.

The previous prime is 646036052222279. The next prime is 646036052222411. The reversal of 646036052222343 is 343222250630646.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 646036052222343 - 2⁶ = 646036052222279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 646036052222292 and 646036052222301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646036052227343) 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, 107672675370388 + ... + 107672675370393.

It is an arithmetic number, because the mean of its divisors is an integer number (215345350740782).

Almost surely, 2^{646036052222343} is an apocalyptic number.

646036052222343 is a deficient number, since it is larger than the sum of its proper divisors (215345350740785).

646036052222343 is a wasteful number, since it uses less digits than its factorization.

646036052222343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215345350740784.

The product of its (nonzero) digits is 7464960, while the sum is 48.

The spelling of 646036052222343 in words is "six hundred forty-six trillion, thirty-six billion, fifty-two million, two hundred twenty-two thousand, three hundred forty-three".