20154134455373 has 16 divisors (see below), whose sum is σ = 21050415371136. Its totient is φ = 19259525260800.

The previous prime is 20154134455363. The next prime is 20154134455379. The reversal of 20154134455373 is 37355443145102.

It is a cyclic number.

It is not a de Polignac number, because 20154134455373 - 2¹⁸ = 20154134193229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20154134455379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260529086 + ... + 260606432.

It is an arithmetic number, because the mean of its divisors is an integer number (1315650960696).

Almost surely, 2^{20154134455373} is an apocalyptic number.

20154134455373 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20154134455373 is a deficient number, since it is larger than the sum of its proper divisors (896280915763).

20154134455373 is a wasteful number, since it uses less digits than its factorization.

20154134455373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88004.

The product of its (nonzero) digits is 3024000, while the sum is 47.

The spelling of 20154134455373 in words is "twenty trillion, one hundred fifty-four billion, one hundred thirty-four million, four hundred fifty-five thousand, three hundred seventy-three".