1004145006646 has 4 divisors (see below), whose sum is σ = 1506217509972. Its totient is φ = 502072503322.

The previous prime is 1004145006643. The next prime is 1004145006647. The reversal of 1004145006646 is 6466005414001.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004145006643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251036251660 + ... + 251036251663.

It is an arithmetic number, because the mean of its divisors is an integer number (376554377493).

Almost surely, 2^{1004145006646} is an apocalyptic number.

1004145006646 is a deficient number, since it is larger than the sum of its proper divisors (502072503326).

1004145006646 is an equidigital number, since it uses as much as digits as its factorization.

1004145006646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502072503325.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 1004145006646 in words is "one trillion, four billion, one hundred forty-five million, six thousand, six hundred forty-six".