3128164670640 has 80 divisors (see below), whose sum is σ = 9903636269568. Its totient is φ = 816428790528.

The previous prime is 3128164670629. The next prime is 3128164670711. The reversal of 3128164670640 is 460764618213.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 3128164670640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138648502 + ... + 138671061.

Almost surely, 2^{3128164670640} is an apocalyptic number.

3128164670640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3128164670640 is an abundant number, since it is smaller than the sum of its proper divisors (6775471598928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3128164670640 is a wasteful number, since it uses less digits than its factorization.

3128164670640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277319626 (or 277319620 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 3128164670640 in words is "three trillion, one hundred twenty-eight billion, one hundred sixty-four million, six hundred seventy thousand, six hundred forty".