512155005340 has 96 divisors (see below), whose sum is σ = 1253313238464. Its totient is φ = 173731676160.

The previous prime is 512155005331. The next prime is 512155005353. The reversal of 512155005340 is 43500551215.

It is a congruent number.

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, 183309 + ... + 1028548.

It is an arithmetic number, because the mean of its divisors is an integer number (13055346234).

Almost surely, 2^512155005340 is an apocalyptic number.

It is an amenable number.

512155005340 is an abundant number, since it is smaller than the sum of its proper divisors (741158233124).

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

512155005340 is a wasteful number, since it uses less digits than its factorization.

512155005340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212007 (or 1212005 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 512155005340 its reverse (43500551215), we get a palindrome (555655556555).

The spelling of 512155005340 in words is "five hundred twelve billion, one hundred fifty-five million, five thousand, three hundred forty".