515153214450 has 144 divisors (see below), whose sum is σ = 1624516470720. Its totient is φ = 114566866560.

The previous prime is 515153214439. The next prime is 515153214491. The reversal of 515153214450 is 54412351515.

515153214450 is a `hidden beast` number, since 5 + 151 + 53 + 2 + 1 + 4 + 450 = 666.

515153214450 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2093460 + ... + 2326559.

It is an arithmetic number, because the mean of its divisors is an integer number (11281364380).

Almost surely, 2^515153214450 is an apocalyptic number.

515153214450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

515153214450 is an abundant number, since it is smaller than the sum of its proper divisors (1109363256270).

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

515153214450 is a wasteful number, since it uses less digits than its factorization.

515153214450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420081 (or 4420073 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 515153214450 its reverse (54412351515), we get a palindrome (569565565965).

The spelling of 515153214450 in words is "five hundred fifteen billion, one hundred fifty-three million, two hundred fourteen thousand, four hundred fifty".