516541554450 has 36 divisors (see below), whose sum is σ = 1387774977498. Its totient is φ = 137744414400.

The previous prime is 516541554421. The next prime is 516541554523. The reversal of 516541554450 is 54455145615.

516541554450 is a `hidden beast` number, since 5 + 1 + 6 + 5 + 41 + 554 + 4 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 368039995569 + 148501558881 = 606663^2 + 385359^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 516541554396 and 516541554405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 573934611 + ... + 573935510.

Almost surely, 2^516541554450 is an apocalyptic number.

516541554450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

516541554450 is an abundant number, since it is smaller than the sum of its proper divisors (871233423048).

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

516541554450 is a wasteful number, since it uses less digits than its factorization.

516541554450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147870139 (or 1147870131 counting only the distinct ones).

The product of its (nonzero) digits is 1200000, while the sum is 45.

The spelling of 516541554450 in words is "five hundred sixteen billion, five hundred forty-one million, five hundred fifty-four thousand, four hundred fifty".