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64464556001 is a prime number
BaseRepresentation
bin111100000010011000…
…110000111111100001
320011101122102202020012
4330002120300333201
52024010411243001
645340431054305
74441330453646
oct740230607741
9204348382205
1064464556001
112538061a06a
12105b1071395
1361046a3ac1
1431977b3dcd
151a2468e2bb
hexf02630fe1

64464556001 has 2 divisors, whose sum is σ = 64464556002. Its totient is φ = 64464556000.

The previous prime is 64464555979. The next prime is 64464556007. The reversal of 64464556001 is 10065546446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54992595025 + 9471960976 = 234505^2 + 97324^2 .

It is a cyclic number.

It is not a de Polignac number, because 64464556001 - 214 = 64464539617 is a prime.

It is a super-2 number, since 2×644645560012 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64464556001.

It is not a weakly prime, because it can be changed into another prime (64464556007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32232278000 + 32232278001.

It is an arithmetic number, because the mean of its divisors is an integer number (32232278001).

Almost surely, 264464556001 is an apocalyptic number.

It is an amenable number.

64464556001 is a deficient number, since it is larger than the sum of its proper divisors (1).

64464556001 is an equidigital number, since it uses as much as digits as its factorization.

64464556001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 64464556001 in words is "sixty-four billion, four hundred sixty-four million, five hundred fifty-six thousand, one".