64701508664168 has 32 divisors (see below), whose sum is σ = 128151584104800. Its totient is φ = 30539785917888.

The previous prime is 64701508664159. The next prime is 64701508664239. The reversal of 64701508664168 is 86146680510746.

It is a self number, because there is not a number n which added to its sum of digits gives 64701508664168.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752020271 + ... + 752106302.

It is an arithmetic number, because the mean of its divisors is an integer number (4004737003275).

Almost surely, 2^{64701508664168} is an apocalyptic number.

It is an amenable number.

64701508664168 is a deficient number, since it is larger than the sum of its proper divisors (63450075440632).

64701508664168 is a wasteful number, since it uses less digits than its factorization.

64701508664168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504126881 (or 1504126877 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 62.

The spelling of 64701508664168 in words is "sixty-four trillion, seven hundred one billion, five hundred eight million, six hundred sixty-four thousand, one hundred sixty-eight".