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663427167541 = 6784059117797
BaseRepresentation
bin10011010011101110101…
…01110011010100110101
32100102102101021000021121
421221313111303110311
541332144323330131
61224435122343541
765634225610555
oct11516725632465
92312371230247
10663427167541
112363a3382326
12a86b04babb1
134a73a433188
1424177d77165
15123cd3e2911
hex9a77573535

663427167541 has 8 divisors (see below), whose sum is σ = 673342791840. Its totient is φ = 653511947088.

The previous prime is 663427167521. The next prime is 663427167643. The reversal of 663427167541 is 145761724366.

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

It is a cyclic number.

It is not a de Polignac number, because 663427167541 - 25 = 663427167509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663427167521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5573055 + ... + 5690851.

It is an arithmetic number, because the mean of its divisors is an integer number (84167848980).

Almost surely, 2663427167541 is an apocalyptic number.

It is an amenable number.

663427167541 is a deficient number, since it is larger than the sum of its proper divisors (9915624299).

663427167541 is a wasteful number, since it uses less digits than its factorization.

663427167541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201923.

The product of its digits is 5080320, while the sum is 52.

The spelling of 663427167541 in words is "six hundred sixty-three billion, four hundred twenty-seven million, one hundred sixty-seven thousand, five hundred forty-one".

Divisors: 1 67 84059 117797 5631953 7892399 9901898023 663427167541