11545032465 has 20 divisors (see below), whose sum is σ = 20695540404. Its totient is φ = 6157350432.

The previous prime is 11545032451. The next prime is 11545032467. The reversal of 11545032465 is 56423054511.

11545032465 is a `hidden beast` number, since 115 + 4 + 50 + 32 + 465 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3419091729 + 8125940736 = 58473^2 + 90144^2 .

It is not a de Polignac number, because 11545032465 - 2⁴ = 11545032449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11545032467) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14252722 + ... + 14253531.

Almost surely, 2^11545032465 is an apocalyptic number.

11545032465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11545032465 is a deficient number, since it is larger than the sum of its proper divisors (9150507939).

11545032465 is an equidigital number, since it uses as much as digits as its factorization.

11545032465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28506270 (or 28506261 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 11545032465 its reverse (56423054511), we get a palindrome (67968086976).

The spelling of 11545032465 in words is "eleven billion, five hundred forty-five million, thirty-two thousand, four hundred sixty-five".