66202054 has 4 divisors (see below), whose sum is σ = 99303084. Its totient is φ = 33101026.

The previous prime is 66202049. The next prime is 66202091. The reversal of 66202054 is 45020266.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16550512 + ... + 16550515.

It is an arithmetic number, because the mean of its divisors is an integer number (24825771).

Almost surely, 2^66202054 is an apocalyptic number.

66202054 is a deficient number, since it is larger than the sum of its proper divisors (33101030).

66202054 is a wasteful number, since it uses less digits than its factorization.

66202054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33101029.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 66202054 is about 8136.4644656018. The cubic root of 66202054 is about 404.5359802734.

The spelling of 66202054 in words is "sixty-six million, two hundred two thousand, fifty-four".