513554555264016 has 80 divisors (see below), whose sum is σ = 1516307807232000. Its totient is φ = 146720280649344.

The previous prime is 513554555263979. The next prime is 513554555264033. The reversal of 513554555264016 is 610462555455315.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44811696 + ... + 55092623.

It is an arithmetic number, because the mean of its divisors is an integer number (18953847590400).

Almost surely, 2^{513554555264016} is an apocalyptic number.

513554555264016 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

513554555264016 is an abundant number, since it is smaller than the sum of its proper divisors (1002753251967984).

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

513554555264016 is a wasteful number, since it uses less digits than its factorization.

513554555264016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99919636 (or 99919630 counting only the distinct ones).

The product of its (nonzero) digits is 54000000, while the sum is 57.

The spelling of 513554555264016 in words is "five hundred thirteen trillion, five hundred fifty-four billion, five hundred fifty-five million, two hundred sixty-four thousand, sixteen".