1515056555140 has 24 divisors (see below), whose sum is σ = 3182322386880. Its totient is φ = 605888599008.

The previous prime is 1515056555081. The next prime is 1515056555149. The reversal of 1515056555140 is 415556505151.

It is not an unprimeable number, because it can be changed into a prime (1515056555149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8283720 + ... + 8464639.

It is an arithmetic number, because the mean of its divisors is an integer number (132596766120).

Almost surely, 2^{1515056555140} is an apocalyptic number.

1515056555140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1515056555140 is an abundant number, since it is smaller than the sum of its proper divisors (1667265831740).

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

1515056555140 is a wasteful number, since it uses less digits than its factorization.

1515056555140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752891 (or 16752889 counting only the distinct ones).

The product of its (nonzero) digits is 375000, while the sum is 43.

The spelling of 1515056555140 in words is "one trillion, five hundred fifteen billion, fifty-six million, five hundred fifty-five thousand, one hundred forty".