664010054 has 4 divisors (see below), whose sum is σ = 996015084. Its totient is φ = 332005026.

The previous prime is 664010051. The next prime is 664010059. The reversal of 664010054 is 450010466.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 450010466 = 2 ⋅225005233.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664010051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166002512 + ... + 166002515.

It is an arithmetic number, because the mean of its divisors is an integer number (249003771).

Almost surely, 2^664010054 is an apocalyptic number.

664010054 is a deficient number, since it is larger than the sum of its proper divisors (332005030).

664010054 is a wasteful number, since it uses less digits than its factorization.

664010054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332005029.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 664010054 is about 25768.3925381464. The cubic root of 664010054 is about 872.4185375076.

The spelling of 664010054 in words is "six hundred sixty-four million, ten thousand, fifty-four".