670146723553 has 4 divisors (see below), whose sum is σ = 705417603760. Its totient is φ = 634875843348.

The previous prime is 670146723497. The next prime is 670146723577. The reversal of 670146723553 is 355327641076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670146723553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 670146723497 and 670146723506.

It is not an unprimeable number, because it can be changed into a prime (670146753553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17635440075 + ... + 17635440112.

It is an arithmetic number, because the mean of its divisors is an integer number (176354400940).

Almost surely, 2^670146723553 is an apocalyptic number.

It is an amenable number.

670146723553 is a deficient number, since it is larger than the sum of its proper divisors (35270880207).

670146723553 is a wasteful number, since it uses less digits than its factorization.

670146723553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35270880206.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 670146723553 in words is "six hundred seventy billion, one hundred forty-six million, seven hundred twenty-three thousand, five hundred fifty-three".