20532279511 has 8 divisors (see below), whose sum is σ = 20976746624. Its totient is φ = 20091871800.

The previous prime is 20532279503. The next prime is 20532279563. The reversal of 20532279511 is 11597223502.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20532279511 - 2³ = 20532279503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20532279571) 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, 1004625 + ... + 1024858.

It is an arithmetic number, because the mean of its divisors is an integer number (2622093328).

Almost surely, 2^20532279511 is an apocalyptic number.

20532279511 is a deficient number, since it is larger than the sum of its proper divisors (444467113).

20532279511 is a wasteful number, since it uses less digits than its factorization.

20532279511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029701.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 20532279511 in words is "twenty billion, five hundred thirty-two million, two hundred seventy-nine thousand, five hundred eleven".