1803816396396 has 72 divisors (see below), whose sum is σ = 5211364200224. Its totient is φ = 515342580480.

The previous prime is 1803816396379. The next prime is 1803816396409. The reversal of 1803816396396 is 6936936183081.

1803816396396 is a `hidden beast` number, since 1 + 80 + 3 + 8 + 163 + 9 + 6 + 396 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3785166 + ... + 4234986.

Almost surely, 2^{1803816396396} is an apocalyptic number.

It is an amenable number.

1803816396396 is an abundant number, since it is smaller than the sum of its proper divisors (3407547803828).

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

1803816396396 is a wasteful number, since it uses less digits than its factorization.

1803816396396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465751 (or 465746 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 63.

The spelling of 1803816396396 in words is "one trillion, eight hundred three billion, eight hundred sixteen million, three hundred ninety-six thousand, three hundred ninety-six".