2153456015544 has 48 divisors (see below), whose sum is σ = 5832397771200. Its totient is φ = 717803771904.

The previous prime is 2153456015527. The next prime is 2153456015551. The reversal of 2153456015544 is 4455106543512.

2153456015544 is a `hidden beast` number, since 2 + 1 + 5 + 3 + 45 + 60 + 1 + 5 + 544 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2153456015544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3505912 + ... + 4074104.

It is an arithmetic number, because the mean of its divisors is an integer number (121508286900).

Almost surely, 2^{2153456015544} is an apocalyptic number.

2153456015544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2153456015544 is an abundant number, since it is smaller than the sum of its proper divisors (3678941755656).

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

2153456015544 is a wasteful number, since it uses less digits than its factorization.

2153456015544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620844 (or 620837 counting only the distinct ones).

The product of its (nonzero) digits is 1440000, while the sum is 45.

The spelling of 2153456015544 in words is "two trillion, one hundred fifty-three billion, four hundred fifty-six million, fifteen thousand, five hundred forty-four".