664571115602034 has 32 divisors (see below), whose sum is σ = 1340982735069120. Its totient is φ = 219559000550400.

The previous prime is 664571115602033. The next prime is 664571115602071. The reversal of 664571115602034 is 430206511175466.

It is not an unprimeable number, because it can be changed into a prime (664571115602033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088777239 + ... + 1089387450.

It is an arithmetic number, because the mean of its divisors is an integer number (41905710470910).

Almost surely, 2^{664571115602034} is an apocalyptic number.

664571115602034 is an abundant number, since it is smaller than the sum of its proper divisors (676411619467086).

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

664571115602034 is a wasteful number, since it uses less digits than its factorization.

664571115602034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178165146.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 664571115602034 in words is "six hundred sixty-four trillion, five hundred seventy-one billion, one hundred fifteen million, six hundred two thousand, thirty-four".