2156208948276 has 24 divisors (see below), whose sum is σ = 5061280889280. Its totient is φ = 714432505152.

The previous prime is 2156208948241. The next prime is 2156208948287. The reversal of 2156208948276 is 6728498026512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537974281 + ... + 537978288.

It is an arithmetic number, because the mean of its divisors is an integer number (210886703720).

Almost surely, 2^{2156208948276} is an apocalyptic number.

It is an amenable number.

2156208948276 is an abundant number, since it is smaller than the sum of its proper divisors (2905071941004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2156208948276 is a wasteful number, since it uses less digits than its factorization.

2156208948276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075952743 (or 1075952741 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 2156208948276 in words is "two trillion, one hundred fifty-six billion, two hundred eight million, nine hundred forty-eight thousand, two hundred seventy-six".