664790547342 has 8 divisors (see below), whose sum is σ = 1329581094696. Its totient is φ = 221596849112.

The previous prime is 664790547329. The next prime is 664790547397. The reversal of 664790547342 is 243745097466.

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

664790547342 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55399212273 + ... + 55399212284.

It is an arithmetic number, because the mean of its divisors is an integer number (166197636837).

Almost surely, 2^664790547342 is an apocalyptic number.

664790547342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

664790547342 is a wasteful number, since it uses less digits than its factorization.

664790547342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110798424562.

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 664790547342 in words is "six hundred sixty-four billion, seven hundred ninety million, five hundred forty-seven thousand, three hundred forty-two".