1144416555 has 24 divisors (see below), whose sum is σ = 1986970752. Its totient is φ = 609335424.

The previous prime is 1144416551. The next prime is 1144416587. The reversal of 1144416555 is 5556144411.

1144416555 is a `hidden beast` number, since 1 + 1 + 444 + 165 + 55 = 666.

It is not a de Polignac number, because 1144416555 - 2² = 1144416551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144416551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6367 + ... + 48263.

It is an arithmetic number, because the mean of its divisors is an integer number (82790448).

Almost surely, 2^1144416555 is an apocalyptic number.

1144416555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144416555 is a deficient number, since it is larger than the sum of its proper divisors (842554197).

1144416555 is a wasteful number, since it uses less digits than its factorization.

1144416555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42515 (or 42512 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 1144416555 is about 33829.2263435036. The cubic root of 1144416555 is about 1045.9912315083.

The spelling of 1144416555 in words is "one billion, one hundred forty-four million, four hundred sixteen thousand, five hundred fifty-five".