1604645455040 has 56 divisors (see below), whose sum is σ = 4045830355872. Its totient is φ = 604101816320.

The previous prime is 1604645455033. The next prime is 1604645455079. The reversal of 1604645455040 is 405545464061.

It is a super-2 number, since 2×1604645455040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1604645454982 and 1604645455000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147480356 + ... + 147491235.

Almost surely, 2^{1604645455040} is an apocalyptic number.

1604645455040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1604645455040 is an abundant number, since it is smaller than the sum of its proper divisors (2441184900832).

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

1604645455040 is a wasteful number, since it uses less digits than its factorization.

1604645455040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294971625 (or 294971615 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 1604645455040 in words is "one trillion, six hundred four billion, six hundred forty-five million, four hundred fifty-five thousand, forty".