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91668342601 = 1137225229343
BaseRepresentation
bin101010101011111011…
…0111110011101001001
322202121112011021221001
41111113312332131021
53000214043430401
6110040054415001
76423425025103
oct1252766763511
9282545137831
1091668342601
1135970431630
1215923661461
13884b666354
144618702573
1525b7a7a601
hex1557dbe749

91668342601 has 8 divisors (see below), whose sum is σ = 102704580864. Its totient is φ = 81082563120.

The previous prime is 91668342587. The next prime is 91668342617. The reversal of 91668342601 is 10624386619.

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 91668342601 - 27 = 91668342473 is a prime.

It is a super-2 number, since 2×916683426012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91668342301) 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, 112614265 + ... + 112615078.

It is an arithmetic number, because the mean of its divisors is an integer number (12838072608).

Almost surely, 291668342601 is an apocalyptic number.

It is an amenable number.

91668342601 is a deficient number, since it is larger than the sum of its proper divisors (11036238263).

91668342601 is a wasteful number, since it uses less digits than its factorization.

91668342601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225229391.

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 91668342601 in words is "ninety-one billion, six hundred sixty-eight million, three hundred forty-two thousand, six hundred one".

Divisors: 1 11 37 407 225229343 2477522773 8333485691 91668342601