10505643465 has 8 divisors (see below), whose sum is σ = 16809029568. Its totient is φ = 5603009840.

The previous prime is 10505643437. The next prime is 10505643469. The reversal of 10505643465 is 56434650501.

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

It is not a de Polignac number, because 10505643465 - 2¹⁷ = 10505512393 is a prime.

It is a super-2 number, since 2×10505643465² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10505643469) 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, 350188101 + ... + 350188130.

It is an arithmetic number, because the mean of its divisors is an integer number (2101128696).

Almost surely, 2^10505643465 is an apocalyptic number.

10505643465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10505643465 is a deficient number, since it is larger than the sum of its proper divisors (6303386103).

10505643465 is an equidigital number, since it uses as much as digits as its factorization.

10505643465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700376239.

The product of its (nonzero) digits is 216000, while the sum is 39.

The spelling of 10505643465 in words is "ten billion, five hundred five million, six hundred forty-three thousand, four hundred sixty-five".