544551004666 has 4 divisors (see below), whose sum is σ = 816826507002. Its totient is φ = 272275502332.

The previous prime is 544551004649. The next prime is 544551004681. The reversal of 544551004666 is 666400155445.

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., 532723354641 + 11827650025 = 729879^2 + 108755^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136137751165 + ... + 136137751168.

Almost surely, 2^544551004666 is an apocalyptic number.

544551004666 is a deficient number, since it is larger than the sum of its proper divisors (272275502336).

544551004666 is a wasteful number, since it uses less digits than its factorization.

544551004666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272275502335.

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 544551004666 in words is "five hundred forty-four billion, five hundred fifty-one million, four thousand, six hundred sixty-six".