664007654475633 has 64 divisors (see below), whose sum is σ = 986291111377152. Its totient is φ = 394784104366080.

The previous prime is 664007654475623. The next prime is 664007654475673. The reversal of 664007654475633 is 336574456700466.

It is not a de Polignac number, because 664007654475633 - 2⁶ = 664007654475569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664007654475623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 383720673 + ... + 385447233.

It is an arithmetic number, because the mean of its divisors is an integer number (15410798615268).

Almost surely, 2^{664007654475633} is an apocalyptic number.

It is an amenable number.

664007654475633 is a deficient number, since it is larger than the sum of its proper divisors (322283456901519).

664007654475633 is a wasteful number, since it uses less digits than its factorization.

664007654475633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729474.

The product of its (nonzero) digits is 914457600, while the sum is 66.

The spelling of 664007654475633 in words is "six hundred sixty-four trillion, seven billion, six hundred fifty-four million, four hundred seventy-five thousand, six hundred thirty-three".