544423011156 has 96 divisors (see below), whose sum is σ = 1434922325760. Its totient is φ = 178459977600.

The previous prime is 544423011133. The next prime is 544423011157. The reversal of 544423011156 is 651110324445.

544423011156 is a `hidden beast` number, since 54 + 442 + 3 + 0 + 11 + 156 = 666.

It is a super-2 number, since 2×544423011156² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 544423011156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544423011157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55736185 + ... + 55745951.

It is an arithmetic number, because the mean of its divisors is an integer number (14947107560).

Almost surely, 2^544423011156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 544423011156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717461162880).

544423011156 is an abundant number, since it is smaller than the sum of its proper divisors (890499314604).

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

544423011156 is a wasteful number, since it uses less digits than its factorization.

544423011156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18302 (or 18294 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 544423011156 in words is "five hundred forty-four billion, four hundred twenty-three million, eleven thousand, one hundred fifty-six".