2216646155501 has 16 divisors (see below), whose sum is σ = 2227175059200. Its totient is φ = 2206145471040.

The previous prime is 2216646155453. The next prime is 2216646155543. The reversal of 2216646155501 is 1055516466122.

It is a cyclic number.

It is not a de Polignac number, because 2216646155501 - 2¹⁰ = 2216646154477 is a prime.

It is a super-2 number, since 2×2216646155501² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216646155201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823112711 + ... + 823115403.

It is an arithmetic number, because the mean of its divisors is an integer number (139198441200).

Almost surely, 2^{2216646155501} is an apocalyptic number.

It is an amenable number.

2216646155501 is a deficient number, since it is larger than the sum of its proper divisors (10528903699).

2216646155501 is a wasteful number, since it uses less digits than its factorization.

2216646155501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6596.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 2216646155501 in words is "two trillion, two hundred sixteen billion, six hundred forty-six million, one hundred fifty-five thousand, five hundred one".