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13960166661 = 327221589947
BaseRepresentation
bin11010000000001011…
…10011110100000101
31100000220111221111200
431000011303310011
5212042300313121
610225130453113
71002642313230
oct150005636405
940026457450
1013960166661
115a14171921
122857294199
1314162a315c
149660a8417
1556a8b5a26
hex340173d05

13960166661 has 12 divisors (see below), whose sum is σ = 23045354592. Its totient is φ = 7977238056.

The previous prime is 13960166611. The next prime is 13960166707. The reversal of 13960166661 is 16666106931.

It is not a de Polignac number, because 13960166661 - 213 = 13960158469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13960166611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 110794911 + ... + 110795036.

It is an arithmetic number, because the mean of its divisors is an integer number (1920446216).

Almost surely, 213960166661 is an apocalyptic number.

It is an amenable number.

13960166661 is a deficient number, since it is larger than the sum of its proper divisors (9085187931).

13960166661 is a wasteful number, since it uses less digits than its factorization.

13960166661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221589960 (or 221589957 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 13960166661 in words is "thirteen billion, nine hundred sixty million, one hundred sixty-six thousand, six hundred sixty-one".

Divisors: 1 3 7 9 21 63 221589947 664769841 1551129629 1994309523 4653388887 13960166661