20151044342154 has 96 divisors (see below), whose sum is σ = 51359413210560. Its totient is φ = 5643891475200.

The previous prime is 20151044342131. The next prime is 20151044342269. The reversal of 20151044342154 is 45124344015102.

20151044342154 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 1 + 0 + 4 + 434 + 215 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65168577 + ... + 65477060.

It is an arithmetic number, because the mean of its divisors is an integer number (534993887610).

Almost surely, 2^{20151044342154} is an apocalyptic number.

20151044342154 is an abundant number, since it is smaller than the sum of its proper divisors (31208368868406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20151044342154 is a wasteful number, since it uses less digits than its factorization.

20151044342154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130645716 (or 130645713 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 20151044342154 its reverse (45124344015102), we get a palindrome (65275388357256).

The spelling of 20151044342154 in words is "twenty trillion, one hundred fifty-one billion, forty-four million, three hundred forty-two thousand, one hundred fifty-four".