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10660151666 = 219214764753
BaseRepresentation
bin10011110110110010…
…10000000101110010
31000111220221210222002
421323121100011302
5133312444323131
64521444014002
7525111536243
oct117331200562
930456853862
1010660151666
1145804177aa
122096091302
13100b6b7068
14731ac6cca
15425d0d6cb
hex27b650172

10660151666 has 12 divisors (see below), whose sum is σ = 16876113822. Its totient is φ = 5049545184.

The previous prime is 10660151657. The next prime is 10660151669. The reversal of 10660151666 is 66615106601.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8509140025 + 2151011641 = 92245^2 + 46379^2 .

It is a super-2 number, since 2×106601516662 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (10660151669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7381655 + ... + 7383098.

Almost surely, 210660151666 is an apocalyptic number.

10660151666 is a deficient number, since it is larger than the sum of its proper divisors (6215962156).

10660151666 is a wasteful number, since it uses less digits than its factorization.

10660151666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14764793 (or 14764774 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 10660151666 in words is "ten billion, six hundred sixty million, one hundred fifty-one thousand, six hundred sixty-six".

Divisors: 1 2 19 38 361 722 14764753 29529506 280530307 561060614 5330075833 10660151666