1555081284680 has 128 divisors (see below), whose sum is σ = 4387523086080. Its totient is φ = 481898757120.

The previous prime is 1555081284643. The next prime is 1555081284697. The reversal of 1555081284680 is 864821805551.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 926399 + ... + 1992078.

It is an arithmetic number, because the mean of its divisors is an integer number (34277524110).

Almost surely, 2^{1555081284680} is an apocalyptic number.

1555081284680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1555081284680 is an abundant number, since it is smaller than the sum of its proper divisors (2832441801400).

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

1555081284680 is a wasteful number, since it uses less digits than its factorization.

1555081284680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918679 (or 2918675 counting only the distinct ones).

The product of its (nonzero) digits is 3072000, while the sum is 53.

The spelling of 1555081284680 in words is "one trillion, five hundred fifty-five billion, eighty-one million, two hundred eighty-four thousand, six hundred eighty".