404048161680 has 80 divisors (see below), whose sum is σ = 1318472963520. Its totient is φ = 102075323904.

The previous prime is 404048161637. The next prime is 404048161687. The reversal of 404048161680 is 86161840404.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (404048161687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44298967 + ... + 44308086.

It is an arithmetic number, because the mean of its divisors is an integer number (16480912044).

Almost surely, 2^404048161680 is an apocalyptic number.

404048161680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404048161680 is an abundant number, since it is smaller than the sum of its proper divisors (914424801840).

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

404048161680 is a wasteful number, since it uses less digits than its factorization.

404048161680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88607088 (or 88607082 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 404048161680 in words is "four hundred four billion, forty-eight million, one hundred sixty-one thousand, six hundred eighty".