64202066 has 4 divisors (see below), whose sum is σ = 96303102. Its totient is φ = 32101032.

The previous prime is 64202059. The next prime is 64202071. The reversal of 64202066 is 66020246.

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

It can be written as a sum of positive squares in only one way, i.e., 54096025 + 10106041 = 7355^2 + 3179^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16050515 + ... + 16050518.

Almost surely, 2^64202066 is an apocalyptic number.

64202066 is a deficient number, since it is larger than the sum of its proper divisors (32101036).

64202066 is a wasteful number, since it uses less digits than its factorization.

64202066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32101035.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 64202066 is about 8012.6191722807. The cubic root of 64202066 is about 400.4205285677.

The spelling of 64202066 in words is "sixty-four million, two hundred two thousand, sixty-six".