2216654154261 has 48 divisors (see below), whose sum is σ = 3376315300800. Its totient is φ = 1397516841216.

The previous prime is 2216654154259. The next prime is 2216654154301. The reversal of 2216654154261 is 1624514566122.

2216654154261 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 6 + 5 + 41 + 542 + 61 = 666.

It is not a de Polignac number, because 2216654154261 - 2¹ = 2216654154259 is a prime.

It is a super-2 number, since 2×2216654154261² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216654154241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 350566846 + ... + 350573168.

It is an arithmetic number, because the mean of its divisors is an integer number (70339902100).

Almost surely, 2^{2216654154261} is an apocalyptic number.

It is an amenable number.

2216654154261 is a deficient number, since it is larger than the sum of its proper divisors (1159661146539).

2216654154261 is a wasteful number, since it uses less digits than its factorization.

2216654154261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650 (or 9647 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The spelling of 2216654154261 in words is "two trillion, two hundred sixteen billion, six hundred fifty-four million, one hundred fifty-four thousand, two hundred sixty-one".