516551456623 has 16 divisors (see below), whose sum is σ = 538066099296. Its totient is φ = 495441722880.

The previous prime is 516551456621. The next prime is 516551456633. The reversal of 516551456623 is 326654155615.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 516551456623 - 2¹ = 516551456621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516551456621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5117028 + ... + 5216998.

It is an arithmetic number, because the mean of its divisors is an integer number (33629131206).

Almost surely, 2^516551456623 is an apocalyptic number.

516551456623 is a deficient number, since it is larger than the sum of its proper divisors (21514642673).

516551456623 is a wasteful number, since it uses less digits than its factorization.

516551456623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101994.

The product of its digits is 3240000, while the sum is 49.

The spelling of 516551456623 in words is "five hundred sixteen billion, five hundred fifty-one million, four hundred fifty-six thousand, six hundred twenty-three".