20154134455404 has 12 divisors (see below), whose sum is σ = 47026313729304. Its totient is φ = 6718044818464.

The previous prime is 20154134455381. The next prime is 20154134455439. The reversal of 20154134455404 is 40455443145102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×20154134455404³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839755602297 + ... + 839755602320.

It is an arithmetic number, because the mean of its divisors is an integer number (3918859477442).

Almost surely, 2^{20154134455404} is an apocalyptic number.

It is an amenable number.

20154134455404 is an abundant number, since it is smaller than the sum of its proper divisors (26872179273900).

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

20154134455404 is a wasteful number, since it uses less digits than its factorization.

20154134455404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679511204624 (or 1679511204622 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 42.

The spelling of 20154134455404 in words is "twenty trillion, one hundred fifty-four billion, one hundred thirty-four million, four hundred fifty-five thousand, four hundred four".