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1601697760813 is a prime number
BaseRepresentation
bin10111010011101100101…
…000000100011000101101
312200010021001220122222101
4113103230220010120231
5202220234111321223
63223450525415101
7223501364222023
oct27235450043055
95603231818871
101601697760813
115683046a22a7
1221a50540a491
13b806889a337
1457745d8c713
152b9e56944ad
hex174eca0462d

1601697760813 has 2 divisors, whose sum is σ = 1601697760814. Its totient is φ = 1601697760812.

The previous prime is 1601697760811. The next prime is 1601697760823. The reversal of 1601697760813 is 3180677961061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1564705777924 + 36991982889 = 1250882^2 + 192333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1601697760813 - 21 = 1601697760811 is a prime.

Together with 1601697760811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1601697760811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800848880406 + 800848880407.

It is an arithmetic number, because the mean of its divisors is an integer number (800848880407).

Almost surely, 21601697760813 is an apocalyptic number.

It is an amenable number.

1601697760813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601697760813 is an equidigital number, since it uses as much as digits as its factorization.

1601697760813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The spelling of 1601697760813 in words is "one trillion, six hundred one billion, six hundred ninety-seven million, seven hundred sixty thousand, eight hundred thirteen".