20154312055 has 8 divisors (see below), whose sum is σ = 24252544800. Its totient is φ = 16078536096.

The previous prime is 20154312053. The next prime is 20154312103. The reversal of 20154312055 is 55021345102.

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 20154312055 - 2¹ = 20154312053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154312053) 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, 5612220 + ... + 5615809.

It is an arithmetic number, because the mean of its divisors is an integer number (3031568100).

Almost surely, 2^20154312055 is an apocalyptic number.

20154312055 is a deficient number, since it is larger than the sum of its proper divisors (4098232745).

20154312055 is a wasteful number, since it uses less digits than its factorization.

20154312055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11228393.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 20154312055 its reverse (55021345102), we get a palindrome (75175657157).

The spelling of 20154312055 in words is "twenty billion, one hundred fifty-four million, three hundred twelve thousand, fifty-five".