55145065272000 has 448 divisors, whose sum is σ = 203487531706368. Its totient is φ = 13042437120000.

The previous prime is 55145065271957. The next prime is 55145065272079. The reversal of 55145065272000 is 27256054155.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8276649 + ... + 13371351.

It is an arithmetic number, because the mean of its divisors is an integer number (454213240416).

Almost surely, 2^{55145065272000} is an apocalyptic number.

55145065272000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55145065272000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101743765853184).

55145065272000 is an abundant number, since it is smaller than the sum of its proper divisors (148342466434368).

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

55145065272000 is a wasteful number, since it uses less digits than its factorization.

55145065272000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094785 (or 5094765 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 42.

The spelling of 55145065272000 in words is "fifty-five trillion, one hundred forty-five billion, sixty-five million, two hundred seventy-two thousand".