2156343335246 has 8 divisors (see below), whose sum is σ = 3236525271840. Its totient is φ = 1077501577968.

The previous prime is 2156343335239. The next prime is 2156343335287. The reversal of 2156343335246 is 6425333436512.

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 2156343335246.

It is a congruent number.

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, 335040806 + ... + 335047241.

It is an arithmetic number, because the mean of its divisors is an integer number (404565658980).

Almost surely, 2^{2156343335246} is an apocalyptic number.

2156343335246 is a deficient number, since it is larger than the sum of its proper divisors (1080181936594).

2156343335246 is a wasteful number, since it uses less digits than its factorization.

2156343335246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670089658.

The product of its digits is 4665600, while the sum is 47.

The spelling of 2156343335246 in words is "two trillion, one hundred fifty-six billion, three hundred forty-three million, three hundred thirty-five thousand, two hundred forty-six".