2156550343102 has 4 divisors (see below), whose sum is σ = 3234825514656. Its totient is φ = 1078275171550.

The previous prime is 2156550343099. The next prime is 2156550343139. The reversal of 2156550343102 is 2013430556512.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539137585774 + ... + 539137585777.

It is an arithmetic number, because the mean of its divisors is an integer number (808706378664).

Almost surely, 2^{2156550343102} is an apocalyptic number.

2156550343102 is a deficient number, since it is larger than the sum of its proper divisors (1078275171554).

2156550343102 is a wasteful number, since it uses less digits than its factorization.

2156550343102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078275171553.

The product of its (nonzero) digits is 108000, while the sum is 37.

Adding to 2156550343102 its reverse (2013430556512), we get a palindrome (4169980899614).

The spelling of 2156550343102 in words is "two trillion, one hundred fifty-six billion, five hundred fifty million, three hundred forty-three thousand, one hundred two".