11540645632 has 36 divisors (see below), whose sum is σ = 23413885096. Its totient is φ = 5675719680.

The previous prime is 11540645603. The next prime is 11540645639. The reversal of 11540645632 is 23654604511.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 11540645591 and 11540645600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11540645639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353898 + ... + 385129.

Almost surely, 2^11540645632 is an apocalyptic number.

It is an amenable number.

11540645632 is an abundant number, since it is smaller than the sum of its proper divisors (11873239464).

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

11540645632 is an frugal number, since it uses more digits than its factorization.

11540645632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739104 (or 739090 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 11540645632 in words is "eleven billion, five hundred forty million, six hundred forty-five thousand, six hundred thirty-two".