20540740162 has 8 divisors (see below), whose sum is σ = 30811747392. Its totient is φ = 10270157700.

The previous prime is 20540740091. The next prime is 20540740169. The reversal of 20540740162 is 26104704502.

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

It is not an unprimeable number, because it can be changed into a prime (20540740169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79987 + ... + 217897.

It is an arithmetic number, because the mean of its divisors is an integer number (3851468424).

Almost surely, 2^20540740162 is an apocalyptic number.

20540740162 is a deficient number, since it is larger than the sum of its proper divisors (10271007230).

20540740162 is a wasteful number, since it uses less digits than its factorization.

20540740162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212384.

The product of its (nonzero) digits is 13440, while the sum is 31.

The spelling of 20540740162 in words is "twenty billion, five hundred forty million, seven hundred forty thousand, one hundred sixty-two".