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669120516289 = 4003167154763
BaseRepresentation
bin10011011110010101011…
…00001101000011000001
32100222010011022002112001
421233022230031003001
541430324323010124
61231220102504001
766225300355141
oct11571254150301
92328104262461
10669120516289
112388550a6525
12a981b135001
134b136b128a4
1424558160921
1512613155b44
hex9bcab0d0c1

669120516289 has 4 divisors (see below), whose sum is σ = 669287675056. Its totient is φ = 668953357524.

The previous prime is 669120516271. The next prime is 669120516293. The reversal of 669120516289 is 982615021966.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 982615021966 = 2491307510983.

It is a cyclic number.

It is not a de Polignac number, because 669120516289 - 213 = 669120508097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (669120516209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83573379 + ... + 83581384.

It is an arithmetic number, because the mean of its divisors is an integer number (167321918764).

Almost surely, 2669120516289 is an apocalyptic number.

It is an amenable number.

669120516289 is a deficient number, since it is larger than the sum of its proper divisors (167158767).

669120516289 is a wasteful number, since it uses less digits than its factorization.

669120516289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167158766.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 669120516289 in words is "six hundred sixty-nine billion, one hundred twenty million, five hundred sixteen thousand, two hundred eighty-nine".

Divisors: 1 4003 167154763 669120516289