64403664602 has 16 divisors (see below), whose sum is σ = 102076666560. Its totient is φ = 30390998112.

The previous prime is 64403664529. The next prime is 64403664617. The reversal of 64403664602 is 20646630446.

It is a self number, because there is not a number n which added to its sum of digits gives 64403664602.

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, 3212123 + ... + 3232110.

It is an arithmetic number, because the mean of its divisors is an integer number (6379791660).

Almost surely, 2^64403664602 is an apocalyptic number.

64403664602 is a deficient number, since it is larger than the sum of its proper divisors (37673001958).

64403664602 is a wasteful number, since it uses less digits than its factorization.

64403664602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6444517.

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 64403664602 in words is "sixty-four billion, four hundred three million, six hundred sixty-four thousand, six hundred two".