78330201604 has 12 divisors (see below), whose sum is σ = 137081415744. Its totient is φ = 39164082824.

The previous prime is 78330201583. The next prime is 78330201619. The reversal of 78330201604 is 40610203387.

It is a happy number.

It is a super-2 number, since 2×78330201604² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78330201604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65824 + ... + 401239.

It is an arithmetic number, because the mean of its divisors is an integer number (11423451312).

Almost surely, 2^78330201604 is an apocalyptic number.

It is an amenable number.

78330201604 is a deficient number, since it is larger than the sum of its proper divisors (58751214140).

78330201604 is a wasteful number, since it uses less digits than its factorization.

78330201604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508994 (or 508992 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 78330201604 in words is "seventy-eight billion, three hundred thirty million, two hundred one thousand, six hundred four".