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6656060071660 = 2251917515947557
BaseRepresentation
bin110000011011011110000…
…0110001001111011101100
3212120022110021022022111211
41200312330012021323230
51333023102334243120
622053430215124204
71254612242053306
oct140667406117354
925508407268454
106656060071660
11213690142958a
128b5ba5073664
133938823c952c
1419022556c976
15b82156ec25a
hex60dbc189eec

6656060071660 has 24 divisors (see below), whose sum is σ = 14713395948720. Its totient is φ = 2522296448064.

The previous prime is 6656060071621. The next prime is 6656060071673. The reversal of 6656060071660 is 661700606566.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8757973399 + ... + 8757974158.

It is an arithmetic number, because the mean of its divisors is an integer number (613058164530).

Almost surely, 26656060071660 is an apocalyptic number.

It is an amenable number.

6656060071660 is an abundant number, since it is smaller than the sum of its proper divisors (8057335877060).

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

6656060071660 is a wasteful number, since it uses less digits than its factorization.

6656060071660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17515947585 (or 17515947583 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The spelling of 6656060071660 in words is "six trillion, six hundred fifty-six billion, sixty million, seventy-one thousand, six hundred sixty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 17515947557 35031895114 70063790228 87579737785 175159475570 332803003583 350318951140 665606007166 1331212014332 1664015017915 3328030035830 6656060071660