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66740370037 = 1123263795929
BaseRepresentation
bin111110001010000010…
…010011101001110101
320101021020210002011221
4332022002103221311
52043141013320122
650354325430341
74551613533205
oct761202235165
9211236702157
1066740370037
1126339220910
1210b2726b3b1
1363a802b423
143331b48405
151b093846c7
hexf8a093a75

66740370037 has 8 divisors (see below), whose sum is σ = 75973227840. Its totient is φ = 58035104160.

The previous prime is 66740369951. The next prime is 66740370041. The reversal of 66740370037 is 73007304766.

66740370037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 66740370037 - 215 = 66740337269 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66740369975 and 66740370002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740370077) 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, 131897712 + ... + 131898217.

It is an arithmetic number, because the mean of its divisors is an integer number (9496653480).

Almost surely, 266740370037 is an apocalyptic number.

It is an amenable number.

66740370037 is a deficient number, since it is larger than the sum of its proper divisors (9232857803).

66740370037 is a wasteful number, since it uses less digits than its factorization.

66740370037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263795963.

The product of its (nonzero) digits is 444528, while the sum is 43.

The spelling of 66740370037 in words is "sixty-six billion, seven hundred forty million, three hundred seventy thousand, thirty-seven".

Divisors: 1 11 23 253 263795929 2901755219 6067306367 66740370037