20011545132 has 48 divisors (see below), whose sum is σ = 47728031232. Its totient is φ = 6522984000.

The previous prime is 20011545131. The next prime is 20011545263. The reversal of 20011545132 is 23154511002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20011545131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669507 + ... + 698757.

It is an arithmetic number, because the mean of its divisors is an integer number (994333984).

Almost surely, 2^20011545132 is an apocalyptic number.

It is an amenable number.

20011545132 is an abundant number, since it is smaller than the sum of its proper divisors (27716486100).

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

20011545132 is a wasteful number, since it uses less digits than its factorization.

20011545132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30518 (or 30516 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 20011545132 in words is "twenty billion, eleven million, five hundred forty-five thousand, one hundred thirty-two".