64996558 has 8 divisors (see below), whose sum is σ = 106358040. Its totient is φ = 29543880.

The previous prime is 64996543. The next prime is 64996571. The reversal of 64996558 is 85569946.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1477173 + ... + 1477216.

It is an arithmetic number, because the mean of its divisors is an integer number (13294755).

Almost surely, 2^64996558 is an apocalyptic number.

64996558 is a deficient number, since it is larger than the sum of its proper divisors (41361482).

64996558 is a wasteful number, since it uses less digits than its factorization.

64996558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954402.

The product of its digits is 2332800, while the sum is 52.

The square root of 64996558 is about 8062.0442816943. The cubic root of 64996558 is about 402.0654786372.

The spelling of 64996558 in words is "sixty-four million, nine hundred ninety-six thousand, five hundred fifty-eight".