10520403403465 has 32 divisors (see below), whose sum is σ = 13036200629760. Its totient is φ = 8146931270400.

The previous prime is 10520403403463. The next prime is 10520403403469. The reversal of 10520403403465 is 56430430402501.

It is not a de Polignac number, because 10520403403465 - 2¹ = 10520403403463 is a prime.

It is a super-2 number, since 2×10520403403465² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10520403403463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6686055 + ... + 8108275.

It is an arithmetic number, because the mean of its divisors is an integer number (407381269680).

Almost surely, 2^{10520403403465} is an apocalyptic number.

It is an amenable number.

10520403403465 is a deficient number, since it is larger than the sum of its proper divisors (2515797226295).

10520403403465 is a wasteful number, since it uses less digits than its factorization.

10520403403465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422673.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 10520403403465 its reverse (56430430402501), we get a palindrome (66950833805966).

The spelling of 10520403403465 in words is "ten trillion, five hundred twenty billion, four hundred three million, four hundred three thousand, four hundred sixty-five".