66053654 has 16 divisors (see below), whose sum is σ = 103677408. Its totient is φ = 31502592.

The previous prime is 66053651. The next prime is 66053681. The reversal of 66053654 is 45635066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66053651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16454 + ... + 20070.

It is an arithmetic number, because the mean of its divisors is an integer number (6479838).

Almost surely, 2^66053654 is an apocalyptic number.

66053654 is a deficient number, since it is larger than the sum of its proper divisors (37623754).

66053654 is a wasteful number, since it uses less digits than its factorization.

66053654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039.

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

The square root of 66053654 is about 8127.3399092200. The cubic root of 66053654 is about 404.2334818412.

The spelling of 66053654 in words is "sixty-six million, fifty-three thousand, six hundred fifty-four".