1554312661848 has 40 divisors (see below), whose sum is σ = 4353514633380. Its totient is φ = 518104220400.

The previous prime is 1554312661829. The next prime is 1554312661871. The reversal of 1554312661848 is 8481662134551.

1554312661848 is a `hidden beast` number, since 1 + 5 + 5 + 4 + 3 + 12 + 6 + 618 + 4 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1554312661794 and 1554312661803.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 1199314678 + ... + 1199315973.

Almost surely, 2^{1554312661848} is an apocalyptic number.

1554312661848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1554312661848 is an abundant number, since it is smaller than the sum of its proper divisors (2799201971532).

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

1554312661848 is a wasteful number, since it uses less digits than its factorization.

1554312661848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398630669 (or 2398630656 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 54.

The spelling of 1554312661848 in words is "one trillion, five hundred fifty-four billion, three hundred twelve million, six hundred sixty-one thousand, eight hundred forty-eight".