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66488466 = 23111007401
BaseRepresentation
bin1111110110100…
…0100010010010
311122002222000210
43331220202102
5114010112331
610333024550
71435066632
oct375504222
9148088023
1066488466
1134592850
121a325156
1310a0c3b5
148b8a6c2
155c85446
hex3f68892

66488466 has 16 divisors (see below), whose sum is σ = 145065888. Its totient is φ = 20148000.

The previous prime is 66488453. The next prime is 66488489.

66488466 is nontrivially palindromic in base 10.

66488466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×664884662 = 8841432222066312, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503635 + ... + 503766.

It is an arithmetic number, because the mean of its divisors is an integer number (9066618).

Almost surely, 266488466 is an apocalyptic number.

66488466 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66488466 is an abundant number, since it is smaller than the sum of its proper divisors (78577422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66488466 is a wasteful number, since it uses less digits than its factorization.

66488466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007417.

The product of its digits is 1327104, while the sum is 48.

The square root of 66488466 is about 8154.0459895686. The cubic root of 66488466 is about 405.1185265038.

The spelling of 66488466 in words is "sixty-six million, four hundred eighty-eight thousand, four hundred sixty-six".

Divisors: 1 2 3 6 11 22 33 66 1007401 2014802 3022203 6044406 11081411 22162822 33244233 66488466