57516112121465 has 8 divisors (see below), whose sum is σ = 71399311599240. Its totient is φ = 44426238328192.

The previous prime is 57516112121453. The next prime is 57516112121477. The reversal of 57516112121465 is 56412121161575.

57516112121465 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57516112121453) and next prime (57516112121477).

It can be written as a sum of positive squares in 4 ways, for example, as 21206955220201 + 36309156901264 = 4605101^2 + 6025708^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57516112121465 - 2⁴⁰ = 56416600493689 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198331420964 + ... + 198331421253.

It is an arithmetic number, because the mean of its divisors is an integer number (8924913949905).

Almost surely, 2^{57516112121465} is an apocalyptic number.

It is an amenable number.

57516112121465 is a deficient number, since it is larger than the sum of its proper divisors (13883199477775).

57516112121465 is a wasteful number, since it uses less digits than its factorization.

57516112121465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396662842251.

The product of its digits is 504000, while the sum is 47.

The spelling of 57516112121465 in words is "fifty-seven trillion, five hundred sixteen billion, one hundred twelve million, one hundred twenty-one thousand, four hundred sixty-five".