664164106342 has 32 divisors (see below), whose sum is σ = 1092767687424. Its totient is φ = 300243218400.

The previous prime is 664164106337. The next prime is 664164106393. The reversal of 664164106342 is 243601461466.

It is a super-2 number, since 2×664164106342² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3033417 + ... + 3244987.

It is an arithmetic number, because the mean of its divisors is an integer number (34148990232).

Almost surely, 2^664164106342 is an apocalyptic number.

664164106342 is a deficient number, since it is larger than the sum of its proper divisors (428603581082).

664164106342 is a wasteful number, since it uses less digits than its factorization.

664164106342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212364.

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 664164106342 in words is "six hundred sixty-four billion, one hundred sixty-four million, one hundred six thousand, three hundred forty-two".