1404128916664 has 8 divisors (see below), whose sum is σ = 2632741718760. Its totient is φ = 702064458328.

The previous prime is 1404128916649. The next prime is 1404128916677. The reversal of 1404128916664 is 4666198214041.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1404128916664² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87758057284 + ... + 87758057299.

It is an arithmetic number, because the mean of its divisors is an integer number (329092714845).

Almost surely, 2^{1404128916664} is an apocalyptic number.

It is an amenable number.

1404128916664 is a deficient number, since it is larger than the sum of its proper divisors (1228612802096).

1404128916664 is a wasteful number, since it uses less digits than its factorization.

1404128916664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175516114589 (or 175516114585 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 1404128916664 in words is "one trillion, four hundred four billion, one hundred twenty-eight million, nine hundred sixteen thousand, six hundred sixty-four".