54645145164440 has 32 divisors (see below), whose sum is σ = 122955267098880. Its totient is φ = 21857401980672.

The previous prime is 54645145164419. The next prime is 54645145164451. The reversal of 54645145164440 is 4446154154645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19152269 + ... + 21819708.

It is an arithmetic number, because the mean of its divisors is an integer number (3842352096840).

Almost surely, 2^{54645145164440} is an apocalyptic number.

It is an amenable number.

54645145164440 is an abundant number, since it is smaller than the sum of its proper divisors (68310121934440).

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

54645145164440 is a wasteful number, since it uses less digits than its factorization.

54645145164440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41005331 (or 41005327 counting only the distinct ones).

The product of its (nonzero) digits is 18432000, while the sum is 53.

The spelling of 54645145164440 in words is "fifty-four trillion, six hundred forty-five billion, one hundred forty-five million, one hundred sixty-four thousand, four hundred forty".