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22066060081 = 1311779144103
BaseRepresentation
bin10100100011001111…
…010101101100110001
32002221211011222212111
4110203033111230301
5330142402410311
614045332125321
71410550262452
oct244317255461
962854158774
1022066060081
1193a379659a
124339a66841
1321087413b0
1410d4859129
1589232bd21
hex5233d5b31

22066060081 has 8 divisors (see below), whose sum is σ = 23765631680. Its totient is φ = 20366800272.

The previous prime is 22066060063. The next prime is 22066060123. The reversal of 22066060081 is 18006066022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-22066060081 is a prime.

It is a super-2 number, since 2×220660600812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22066064081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81076 + ... + 225178.

It is an arithmetic number, because the mean of its divisors is an integer number (2970703960).

Almost surely, 222066060081 is an apocalyptic number.

It is an amenable number.

22066060081 is a deficient number, since it is larger than the sum of its proper divisors (1699571599).

22066060081 is a wasteful number, since it uses less digits than its factorization.

22066060081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155895.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 22066060081 in words is "twenty-two billion, sixty-six million, sixty thousand, eighty-one".

Divisors: 1 13 11779 144103 153127 1873339 1697389237 22066060081