516511261541 has 16 divisors (see below), whose sum is σ = 595486080000. Its totient is φ = 443069910000.

The previous prime is 516511261537. The next prime is 516511261547. The reversal of 516511261541 is 145162115615.

It is a cyclic number.

It is not a de Polignac number, because 516511261541 - 2² = 516511261537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516511261495 and 516511261504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516511261547) 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, 4870541 + ... + 4975458.

It is an arithmetic number, because the mean of its divisors is an integer number (37217880000).

Almost surely, 2^516511261541 is an apocalyptic number.

It is an amenable number.

516511261541 is a deficient number, since it is larger than the sum of its proper divisors (78974818459).

516511261541 is a wasteful number, since it uses less digits than its factorization.

516511261541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9846280.

The product of its digits is 36000, while the sum is 38.

The spelling of 516511261541 in words is "five hundred sixteen billion, five hundred eleven million, two hundred sixty-one thousand, five hundred forty-one".