20156144014 has 8 divisors (see below), whose sum is σ = 31209513408. Its totient is φ = 9752972880.

The previous prime is 20156143979. The next prime is 20156144033. The reversal of 20156144014 is 41044165102.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 162549487 + ... + 162549610.

It is an arithmetic number, because the mean of its divisors is an integer number (3901189176).

Almost surely, 2^20156144014 is an apocalyptic number.

20156144014 is a deficient number, since it is larger than the sum of its proper divisors (11053369394).

20156144014 is a wasteful number, since it uses less digits than its factorization.

20156144014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325099130.

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 20156144014 in words is "twenty billion, one hundred fifty-six million, one hundred forty-four thousand, fourteen".