515061016511 has 16 divisors (see below), whose sum is σ = 527937903360. Its totient is φ = 502308069120.

The previous prime is 515061016493. The next prime is 515061016517. The reversal of 515061016511 is 115610160515.

It is a cyclic number.

It is not a de Polignac number, because 515061016511 - 2²⁶ = 514993907647 is a prime.

It is a super-2 number, since 2×515061016511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515061016517) 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, 7779395 + ... + 7845323.

It is an arithmetic number, because the mean of its divisors is an integer number (32996118960).

Almost surely, 2^515061016511 is an apocalyptic number.

515061016511 is a deficient number, since it is larger than the sum of its proper divisors (12876886849).

515061016511 is a wasteful number, since it uses less digits than its factorization.

515061016511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66866.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 515061016511 in words is "five hundred fifteen billion, sixty-one million, sixteen thousand, five hundred eleven".