10513453212665 has 24 divisors (see below), whose sum is σ = 13722470170584. Its totient is φ = 7686911232000.

The previous prime is 10513453212653. The next prime is 10513453212673. The reversal of 10513453212665 is 56621235431501.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 54593724409 + 10458859488256 = 233653^2 + 3234016^2 .

It is not a de Polignac number, because 10513453212665 - 2¹⁶ = 10513453147129 is a prime.

It is a super-2 number, since 2×10513453212665² (a number of 27 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 23 ways as a sum of consecutive naturals, for example, 7264856 + ... + 8590985.

It is an arithmetic number, because the mean of its divisors is an integer number (571769590441).

Almost surely, 2^{10513453212665} is an apocalyptic number.

It is an amenable number.

10513453212665 is a deficient number, since it is larger than the sum of its proper divisors (3209016957919).

10513453212665 is a wasteful number, since it uses less digits than its factorization.

10513453212665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15856061 (or 15855960 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 10513453212665 in words is "ten trillion, five hundred thirteen billion, four hundred fifty-three million, two hundred twelve thousand, six hundred sixty-five".