66546001 has 4 divisors (see below), whose sum is σ = 66581104. Its totient is φ = 66510900.

The previous prime is 66545959. The next prime is 66546047. The reversal of 66546001 is 10064566.

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 66546001 - 2²¹ = 64448849 is a prime.

It is a super-3 number, since 3×66546001³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66546071) 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, 14535 + ... + 18556.

It is an arithmetic number, because the mean of its divisors is an integer number (16645276).

Almost surely, 2^66546001 is an apocalyptic number.

It is an amenable number.

66546001 is a deficient number, since it is larger than the sum of its proper divisors (35103).

66546001 is a wasteful number, since it uses less digits than its factorization.

66546001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35102.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 66546001 is about 8157.5732298276. The cubic root of 66546001 is about 405.2353476399.

The spelling of 66546001 in words is "sixty-six million, five hundred forty-six thousand, one".