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16074755881 is a prime number
BaseRepresentation
bin11101111100010000…
…10100111100101001
31112111021111012120221
432332020110330221
5230410114142011
611215025450041
71106230112332
oct167610247451
945437435527
1016074755881
1168a9865018
1231474a0921
1316923cb692
14ac6c71289
15641360971
hex3be214f29

16074755881 has 2 divisors, whose sum is σ = 16074755882. Its totient is φ = 16074755880.

The previous prime is 16074755863. The next prime is 16074755911. The reversal of 16074755881 is 18855747061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11461629481 + 4613126400 = 107059^2 + 67920^2 .

It is an emirp because it is prime and its reverse (18855747061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16074755881 - 221 = 16072658729 is a prime.

It is a super-2 number, since 2×160747558812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16074755581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8037377940 + 8037377941.

It is an arithmetic number, because the mean of its divisors is an integer number (8037377941).

Almost surely, 216074755881 is an apocalyptic number.

It is an amenable number.

16074755881 is a deficient number, since it is larger than the sum of its proper divisors (1).

16074755881 is an equidigital number, since it uses as much as digits as its factorization.

16074755881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 16074755881 in words is "sixteen billion, seventy-four million, seven hundred fifty-five thousand, eight hundred eighty-one".