544155551445 has 128 divisors (see below), whose sum is σ = 1022381015040. Its totient is φ = 244211834880.

The previous prime is 544155551441. The next prime is 544155551447.

544155551445 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 544155551445 - 2² = 544155551441 is a prime.

It is a super-2 number, since 2×544155551445² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 544155551394 and 544155551403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544155551441) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 58274817 + ... + 58284153.

It is an arithmetic number, because the mean of its divisors is an integer number (7987351680).

Almost surely, 2^544155551445 is an apocalyptic number.

544155551445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

544155551445 is a deficient number, since it is larger than the sum of its proper divisors (478225463595).

544155551445 is a wasteful number, since it uses less digits than its factorization.

544155551445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715.

The product of its digits is 4000000, while the sum is 48.

The spelling of 544155551445 in words is "five hundred forty-four billion, one hundred fifty-five million, five hundred fifty-one thousand, four hundred forty-five".