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66973370337 = 3217971414083
BaseRepresentation
bin111110010111111011…
…001000011111100001
320101212111012201111200
4332113323020133201
52044130140322322
650433411431413
74560443153316
oct762773103741
9211774181450
1066973370337
11264487a3445
1210b912b5569
13641439b223
143354a7ad0d
151b1ea5b8ac
hexf97ec87e1

66973370337 has 12 divisors (see below), whose sum is σ = 96744929424. Its totient is φ = 44646321240.

The previous prime is 66973370311. The next prime is 66973370411. The reversal of 66973370337 is 73307337966.

It is not a de Polignac number, because 66973370337 - 26 = 66973370273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66923370337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45303 + ... + 368780.

It is an arithmetic number, because the mean of its divisors is an integer number (8062077452).

Almost surely, 266973370337 is an apocalyptic number.

It is an amenable number.

66973370337 is a deficient number, since it is larger than the sum of its proper divisors (29771559087).

66973370337 is a wasteful number, since it uses less digits than its factorization.

66973370337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432060 (or 432057 counting only the distinct ones).

The product of its (nonzero) digits is 9001692, while the sum is 54.

The spelling of 66973370337 in words is "sixty-six billion, nine hundred seventy-three million, three hundred seventy thousand, three hundred thirty-seven".

Divisors: 1 3 9 17971 53913 161739 414083 1242249 3726747 7441485593 22324456779 66973370337