2156445352312 has 8 divisors (see below), whose sum is σ = 4043335035600. Its totient is φ = 1078222676152.

The previous prime is 2156445352297. The next prime is 2156445352471. The reversal of 2156445352312 is 2132535446512.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134777834512 + ... + 134777834527.

It is an arithmetic number, because the mean of its divisors is an integer number (505416879450).

Almost surely, 2^{2156445352312} is an apocalyptic number.

It is an amenable number.

2156445352312 is a deficient number, since it is larger than the sum of its proper divisors (1886889683288).

2156445352312 is a wasteful number, since it uses less digits than its factorization.

2156445352312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269555669045 (or 269555669041 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

The spelling of 2156445352312 in words is "two trillion, one hundred fifty-six billion, four hundred forty-five million, three hundred fifty-two thousand, three hundred twelve".