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61677161159 is a prime number
BaseRepresentation
bin111001011100001111…
…101100101011000111
312220012101110102100012
4321130033230223013
52002303323124114
644200055340435
74312263135245
oct713417545307
9186171412305
1061677161159
1124180171069
12bb5368171b
135a7c06b143
142db1511795
15190eae463e
hexe5c3ecac7

61677161159 has 2 divisors, whose sum is σ = 61677161160. Its totient is φ = 61677161158.

The previous prime is 61677161153. The next prime is 61677161177. The reversal of 61677161159 is 95116177616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61677161159 - 28 = 61677160903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61677161153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30838580579 + 30838580580.

It is an arithmetic number, because the mean of its divisors is an integer number (30838580580).

Almost surely, 261677161159 is an apocalyptic number.

61677161159 is a deficient number, since it is larger than the sum of its proper divisors (1).

61677161159 is an equidigital number, since it uses as much as digits as its factorization.

61677161159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 50.

The spelling of 61677161159 in words is "sixty-one billion, six hundred seventy-seven million, one hundred sixty-one thousand, one hundred fifty-nine".