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637676660082 = 2371121919973307
BaseRepresentation
bin10010100011110000111…
…11011010010101110010
32020221221210010200210010
421101320133122111302
540421430211110312
61204540011515350
764033136115030
oct11217037322562
92227853120703
10637676660082
11226489939a00
12a3704758b56
1348195585207
1422c14069550
15118c28c293c
hex94787da572

637676660082 has 192 divisors, whose sum is σ = 1687772298240. Its totient is φ = 156786917760.

The previous prime is 637676660081. The next prime is 637676660113. The reversal of 637676660082 is 280066676736.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (637676660081) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 192824673 + ... + 192827979.

It is an arithmetic number, because the mean of its divisors is an integer number (8790480720).

Almost surely, 2637676660082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 637676660082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (843886149120).

637676660082 is an abundant number, since it is smaller than the sum of its proper divisors (1050095638158).

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

637676660082 is a wasteful number, since it uses less digits than its factorization.

637676660082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357 (or 5346 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 57.

The spelling of 637676660082 in words is "six hundred thirty-seven billion, six hundred seventy-six million, six hundred sixty thousand, eighty-two".