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66166701 = 322055567
BaseRepresentation
bin1111110001100…
…1111110101101
311121111121122120
43330121332231
5113414313301
610322103153
71432256556
oct374317655
9147447576
1066166701
1134393027
121a1aaab9
1310928ac3
148b0532d
155c1ee36

66166701 has 4 divisors (see below), whose sum is σ = 88222272. Its totient is φ = 44111132.

The previous prime is 66166691. The next prime is 66166729. The reversal of 66166701 is 10766166.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66166701 - 211 = 66164653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66166781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11027781 + ... + 11027786.

It is an arithmetic number, because the mean of its divisors is an integer number (22055568).

Almost surely, 266166701 is an apocalyptic number.

It is an amenable number.

66166701 is a deficient number, since it is larger than the sum of its proper divisors (22055571).

66166701 is a wasteful number, since it uses less digits than its factorization.

66166701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22055570.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 66166701 is about 8134.2916716823. The cubic root of 66166701 is about 404.4639578000.

The spelling of 66166701 in words is "sixty-six million, one hundred sixty-six thousand, seven hundred one".

Divisors: 1 3 22055567 66166701