20154412315 has 16 divisors (see below), whose sum is σ = 25123996800. Its totient is φ = 15502383232.

The previous prime is 20154412277. The next prime is 20154412361. The reversal of 20154412315 is 51321445102.

It is a cyclic number.

It is not a de Polignac number, because 20154412315 - 2²⁷ = 20020194587 is a prime.

It is an unprimeable number.

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, 256132 + ... + 325441.

It is an arithmetic number, because the mean of its divisors is an integer number (1570249800).

Almost surely, 2^20154412315 is an apocalyptic number.

20154412315 is a deficient number, since it is larger than the sum of its proper divisors (4969584485).

20154412315 is a wasteful number, since it uses less digits than its factorization.

20154412315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581846.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 20154412315 its reverse (51321445102), we get a palindrome (71475857417).

The spelling of 20154412315 in words is "twenty billion, one hundred fifty-four million, four hundred twelve thousand, three hundred fifteen".