2156550414216 has 192 divisors, whose sum is σ = 6018208035840. Its totient is φ = 643364937600.

The previous prime is 2156550414197. The next prime is 2156550414253. The reversal of 2156550414216 is 6124140556512.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 149888575 + ... + 149902961.

It is an arithmetic number, because the mean of its divisors is an integer number (31344833520).

Almost surely, 2^{2156550414216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2156550414216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3009104017920).

2156550414216 is an abundant number, since it is smaller than the sum of its proper divisors (3861657621624).

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

2156550414216 is a wasteful number, since it uses less digits than its factorization.

2156550414216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15216 (or 15201 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 2156550414216 in words is "two trillion, one hundred fifty-six billion, five hundred fifty million, four hundred fourteen thousand, two hundred sixteen".