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2216472898591 = 73183111228993
BaseRepresentation
bin100000010000010000000…
…101000110110000011111
321211220002210210111011201
4200100100011012300133
5242303314030223331
64414122242300331
7316064156532340
oct40202005066037
97756083714151
102216472898591
11785001193566
122b96983576a7
131310215c3003
14793c66420c7
153c9c770aa61
hex20410146c1f

2216472898591 has 16 divisors (see below), whose sum is σ = 2615141920768. Its totient is φ = 1838326233600.

The previous prime is 2216472898583. The next prime is 2216472898649. The reversal of 2216472898591 is 1958982746122.

It is a cyclic number.

It is not a de Polignac number, because 2216472898591 - 23 = 2216472898583 is a prime.

It is a super-2 number, since 2×22164728985912 (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 (2216472898501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1188991 + ... + 2417983.

It is an arithmetic number, because the mean of its divisors is an integer number (163446370048).

Almost surely, 22216472898591 is an apocalyptic number.

2216472898591 is a deficient number, since it is larger than the sum of its proper divisors (398669022177).

2216472898591 is a wasteful number, since it uses less digits than its factorization.

2216472898591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237342.

The product of its digits is 34836480, while the sum is 64.

The spelling of 2216472898591 in words is "two trillion, two hundred sixteen billion, four hundred seventy-two million, eight hundred ninety-eight thousand, five hundred ninety-one".

Divisors: 1 7 31 217 8311 58177 257641 1228993 1803487 8602951 38098783 266691481 10214160823 71499125761 316638985513 2216472898591