51516106611 has 8 divisors (see below), whose sum is σ = 68707391424. Its totient is φ = 34334446440.

The previous prime is 51516106567. The next prime is 51516106633. The reversal of 51516106611 is 11660161515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51516106611 - 2⁷ = 51516106483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51516106711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2393661 + ... + 2415086.

It is an arithmetic number, because the mean of its divisors is an integer number (8588423928).

Almost surely, 2^51516106611 is an apocalyptic number.

51516106611 is a deficient number, since it is larger than the sum of its proper divisors (17191284813).

51516106611 is a wasteful number, since it uses less digits than its factorization.

51516106611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4812321.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 51516106611 in words is "fifty-one billion, five hundred sixteen million, one hundred six thousand, six hundred eleven".