66554054 has 12 divisors (see below), whose sum is σ = 116130204. Its totient is φ = 28523124.

The previous prime is 66554053. The next prime is 66554057. The reversal of 66554054 is 45045566.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66554053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339464 + ... + 339659.

It is an arithmetic number, because the mean of its divisors is an integer number (9677517).

Almost surely, 2^66554054 is an apocalyptic number.

66554054 is a deficient number, since it is larger than the sum of its proper divisors (49576150).

66554054 is a wasteful number, since it uses less digits than its factorization.

66554054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679139 (or 679132 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 66554054 is about 8158.0668053161. The cubic root of 66554054 is about 405.2516933686.

The spelling of 66554054 in words is "sixty-six million, five hundred fifty-four thousand, fifty-four".