20532653091 has 16 divisors (see below), whose sum is σ = 32208084000. Its totient is φ = 12883233024.

The previous prime is 20532653059. The next prime is 20532653093. The reversal of 20532653091 is 19035623502.

20532653091 is a `hidden beast` number, since 2 + 0 + 5 + 32 + 6 + 530 + 91 = 666.

It is not a de Polignac number, because 20532653091 - 2⁵ = 20532653059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20532653093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22366266 + ... + 22367183.

It is an arithmetic number, because the mean of its divisors is an integer number (2013005250).

Almost surely, 2^20532653091 is an apocalyptic number.

20532653091 is a deficient number, since it is larger than the sum of its proper divisors (11675430909).

20532653091 is a wasteful number, since it uses less digits than its factorization.

20532653091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44733475 (or 44733469 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

It can be divided in two parts, 2053265 and 3091, that added together give a square (2056356 = 1434²).

The spelling of 20532653091 in words is "twenty billion, five hundred thirty-two million, six hundred fifty-three thousand, ninety-one".