66200554 has 8 divisors (see below), whose sum is σ = 113486688. Its totient is φ = 28371660.

The previous prime is 66200549. The next prime is 66200573. The reversal of 66200554 is 45500266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2364292 + ... + 2364319.

It is an arithmetic number, because the mean of its divisors is an integer number (14185836).

Almost surely, 2^66200554 is an apocalyptic number.

66200554 is a deficient number, since it is larger than the sum of its proper divisors (47286134).

66200554 is a wasteful number, since it uses less digits than its factorization.

66200554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728620.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 66200554 is about 8136.3722874510. The cubic root of 66200554 is about 404.5329249374.

The spelling of 66200554 in words is "sixty-six million, two hundred thousand, five hundred fifty-four".