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66882492408 = 2336581423457
BaseRepresentation
bin111110010010100000…
…011101011111111000
320101122011012122102110
4332102200131133320
52043433404224113
650420403532320
74555260543144
oct762240353770
9211564178373
1066882492408
1126401472516
1210b6698a0a0
1363cb5cc7c4
143346982224
151b16aa9bc3
hexf9281d7f8

66882492408 has 32 divisors (see below), whose sum is σ = 167232033360. Its totient is φ = 22290723840.

The previous prime is 66882492283. The next prime is 66882492409. The reversal of 66882492408 is 80429428866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66882492409) 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, 53785 + ... + 369672.

Almost surely, 266882492408 is an apocalyptic number.

It is an amenable number.

66882492408 is an abundant number, since it is smaller than the sum of its proper divisors (100349540952).

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

66882492408 is a wasteful number, since it uses less digits than its factorization.

66882492408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430047 (or 430043 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 57.

The spelling of 66882492408 in words is "sixty-six billion, eight hundred eighty-two million, four hundred ninety-two thousand, four hundred eight".

Divisors: 1 2 3 4 6 8 12 24 6581 13162 19743 26324 39486 52648 78972 157944 423457 846914 1270371 1693828 2540742 3387656 5081484 10162968 2786770517 5573541034 8360311551 11147082068 16720623102 22294164136 33441246204 66882492408