512212515646465 has 8 divisors (see below), whose sum is σ = 617873107880448. Its totient is φ = 407624619780720.

The previous prime is 512212515646411. The next prime is 512212515646523. The reversal of 512212515646465 is 564646515212215.

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

It is not a de Polignac number, because 512212515646465 - 2¹⁵ = 512212515613697 is a prime.

It is a super-2 number, since 2×512212515646465² (a number of 30 digits) contains 22 as substring.

It is a Duffinian 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, 268174091007 + ... + 268174092916.

It is an arithmetic number, because the mean of its divisors is an integer number (77234138485056).

Almost surely, 2^{512212515646465} is an apocalyptic number.

It is an amenable number.

512212515646465 is a deficient number, since it is larger than the sum of its proper divisors (105660592233983).

512212515646465 is a wasteful number, since it uses less digits than its factorization.

512212515646465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536348184119.

The product of its digits is 17280000, while the sum is 55.

The spelling of 512212515646465 in words is "five hundred twelve trillion, two hundred twelve billion, five hundred fifteen million, six hundred forty-six thousand, four hundred sixty-five".