66546053 has 8 divisors (see below), whose sum is σ = 76190400. Its totient is φ = 56936160.

The previous prime is 66546049. The next prime is 66546071. The reversal of 66546053 is 35064566.

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 66546053 - 2² = 66546049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66546253) 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, 4328 + ... + 12321.

It is an arithmetic number, because the mean of its divisors is an integer number (9523800).

Almost surely, 2^66546053 is an apocalyptic number.

It is an amenable number.

66546053 is a deficient number, since it is larger than the sum of its proper divisors (9644347).

66546053 is a wasteful number, since it uses less digits than its factorization.

66546053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17227.

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 66546053 is about 8157.5764170494. The cubic root of 66546053 is about 405.2354531921.

The spelling of 66546053 in words is "sixty-six million, five hundred forty-six thousand, fifty-three".