1604980238646 has 16 divisors (see below), whose sum is σ = 3231503838000. Its totient is φ = 531402852768.

The previous prime is 1604980238621. The next prime is 1604980238671. The reversal of 1604980238646 is 6468320894061.

It is an interprime number because it is at equal distance from previous prime (1604980238621) and next prime (1604980238671).

It is a super-2 number, since 2×1604980238646² (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 in 7 ways as a sum of consecutive naturals, for example, 897639061 + ... + 897640848.

It is an arithmetic number, because the mean of its divisors is an integer number (201968989875).

Almost surely, 2^{1604980238646} is an apocalyptic number.

1604980238646 is an abundant number, since it is smaller than the sum of its proper divisors (1626523599354).

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

1604980238646 is a wasteful number, since it uses less digits than its factorization.

1604980238646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795280063.

The product of its (nonzero) digits is 11943936, while the sum is 57.

The spelling of 1604980238646 in words is "one trillion, six hundred four billion, nine hundred eighty million, two hundred thirty-eight thousand, six hundred forty-six".