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66153053 = 671377207
BaseRepresentation
bin1111110001011…
…0101001011101
311121110220221002
43330112221131
5113413344203
610321520045
71432202021
oct374265135
9147426832
1066153053
113438384a
121a1a3025
1310922825
148b00381
hex3f16a5d

66153053 has 8 divisors (see below), whose sum is σ = 67639872. Its totient is φ = 64681056.

The previous prime is 66153029. The next prime is 66153119. The reversal of 66153053 is 35035166.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66153053 - 210 = 66152029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66153023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5576 + ... + 12782.

It is an arithmetic number, because the mean of its divisors is an integer number (8454984).

Almost surely, 266153053 is an apocalyptic number.

It is an amenable number.

66153053 is a deficient number, since it is larger than the sum of its proper divisors (1486819).

66153053 is a wasteful number, since it uses less digits than its factorization.

66153053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 66153053 is about 8133.4527108725. The cubic root of 66153053 is about 404.4361467127.

The spelling of 66153053 in words is "sixty-six million, one hundred fifty-three thousand, fifty-three".

Divisors: 1 67 137 7207 9179 482869 987359 66153053