516213426515 has 4 divisors (see below), whose sum is σ = 619456111824. Its totient is φ = 412970741208.

The previous prime is 516213426499. The next prime is 516213426517. The reversal of 516213426515 is 515624312615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 516213426515 - 2⁴ = 516213426499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516213426517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51621342647 + ... + 51621342656.

It is an arithmetic number, because the mean of its divisors is an integer number (154864027956).

Almost surely, 2^516213426515 is an apocalyptic number.

516213426515 is a deficient number, since it is larger than the sum of its proper divisors (103242685309).

516213426515 is a wasteful number, since it uses less digits than its factorization.

516213426515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103242685308.

The product of its digits is 216000, while the sum is 41.

The spelling of 516213426515 in words is "five hundred sixteen billion, two hundred thirteen million, four hundred twenty-six thousand, five hundred fifteen".