45511432032 has 192 divisors, whose sum is σ = 137526681600. Its totient is φ = 13033198080.

The previous prime is 45511432009. The next prime is 45511432033. The reversal of 45511432032 is 23023411554.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45511432033) 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, 8805513 + ... + 8810679.

It is an arithmetic number, because the mean of its divisors is an integer number (716284800).

Almost surely, 2^45511432032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45511432032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68763340800).

45511432032 is an abundant number, since it is smaller than the sum of its proper divisors (92015249568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45511432032 is a wasteful number, since it uses less digits than its factorization.

45511432032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649 (or 5641 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 45511432032 its reverse (23023411554), we get a palindrome (68534843586).

The spelling of 45511432032 in words is "forty-five billion, five hundred eleven million, four hundred thirty-two thousand, thirty-two".