1555704896144 has 20 divisors (see below), whose sum is σ = 3444775127424. Its totient is φ = 666730669728.

The previous prime is 1555704896143. The next prime is 1555704896149. The reversal of 1555704896144 is 4416984075551.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1555704896143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6945111032 + ... + 6945111255.

Almost surely, 2^{1555704896144} is an apocalyptic number.

1555704896144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1555704896144 is an abundant number, since it is smaller than the sum of its proper divisors (1889070231280).

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

1555704896144 is a wasteful number, since it uses less digits than its factorization.

1555704896144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13890222302 (or 13890222296 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 59.

The spelling of 1555704896144 in words is "one trillion, five hundred fifty-five billion, seven hundred four million, eight hundred ninety-six thousand, one hundred forty-four".