1604881646040 has 64 divisors (see below), whose sum is σ = 4831657920000. Its totient is φ = 426456173952.

The previous prime is 1604881646023. The next prime is 1604881646057. The reversal of 1604881646040 is 406461884061.

It is an interprime number because it is at equal distance from previous prime (1604881646023) and next prime (1604881646057).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23595040 + ... + 23662959.

It is an arithmetic number, because the mean of its divisors is an integer number (75494655000).

Almost surely, 2^{1604881646040} is an apocalyptic number.

1604881646040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1604881646040 is an abundant number, since it is smaller than the sum of its proper divisors (3226776273960).

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

1604881646040 is a wasteful number, since it uses less digits than its factorization.

1604881646040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47258296 (or 47258292 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The spelling of 1604881646040 in words is "one trillion, six hundred four billion, eight hundred eighty-one million, six hundred forty-six thousand, forty".