20154150415 has 16 divisors (see below), whose sum is σ = 27672270912. Its totient is φ = 13803842304.

The previous prime is 20154150349. The next prime is 20154150431. The reversal of 20154150415 is 51405145102.

It is not a de Polignac number, because 20154150415 - 2¹¹ = 20154148367 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 305964 + ... + 365953.

It is an arithmetic number, because the mean of its divisors is an integer number (1729516932).

Almost surely, 2^20154150415 is an apocalyptic number.

20154150415 is a deficient number, since it is larger than the sum of its proper divisors (7518120497).

20154150415 is an equidigital number, since it uses as much as digits as its factorization.

20154150415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672786.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 20154150415 its reverse (51405145102), we get a palindrome (71559295517).

It can be divided in two parts, 20154 and 150415, that added together give a square (170569 = 413²).

The spelling of 20154150415 in words is "twenty billion, one hundred fifty-four million, one hundred fifty thousand, four hundred fifteen".