1804320166377 has 16 divisors (see below), whose sum is σ = 2532451439360. Its totient is φ = 1139538115152.

The previous prime is 1804320166373. The next prime is 1804320166387. The reversal of 1804320166377 is 7736610234081.

It is not a de Polignac number, because 1804320166377 - 2² = 1804320166373 is a prime.

It is a super-2 number, since 2×1804320166377² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1804320166373) 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, 1648458 + ... + 2515164.

It is an arithmetic number, because the mean of its divisors is an integer number (158278214960).

Almost surely, 2^{1804320166377} is an apocalyptic number.

It is an amenable number.

1804320166377 is a deficient number, since it is larger than the sum of its proper divisors (728131272983).

1804320166377 is a wasteful number, since it uses less digits than its factorization.

1804320166377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903252.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 1804320166377 in words is "one trillion, eight hundred four billion, three hundred twenty million, one hundred sixty-six thousand, three hundred seventy-seven".