54920441561840 has 80 divisors (see below), whose sum is σ = 135246296808000. Its totient is φ = 20669035130880.

The previous prime is 54920441561819. The next prime is 54920441561897. The reversal of 54920441561840 is 4816514402945.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2654051 + ... + 10811330.

It is an arithmetic number, because the mean of its divisors is an integer number (1690578710100).

Almost surely, 2^{54920441561840} is an apocalyptic number.

It is an amenable number.

54920441561840 is an abundant number, since it is smaller than the sum of its proper divisors (80325855246160).

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

54920441561840 is a wasteful number, since it uses less digits than its factorization.

54920441561840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13468410 (or 13468404 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 53.

The spelling of 54920441561840 in words is "fifty-four trillion, nine hundred twenty billion, four hundred forty-one million, five hundred sixty-one thousand, eight hundred forty".