1144664355 has 16 divisors (see below), whose sum is σ = 1832107680. Its totient is φ = 610272768.

The previous prime is 1144664351. The next prime is 1144664377. The reversal of 1144664355 is 5534664411.

It is not a de Polignac number, because 1144664355 - 2² = 1144664351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144664351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36619 + ... + 60251.

It is an arithmetic number, because the mean of its divisors is an integer number (114506730).

Almost surely, 2^1144664355 is an apocalyptic number.

1144664355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144664355 is a deficient number, since it is larger than the sum of its proper divisors (687443325).

1144664355 is a wasteful number, since it uses less digits than its factorization.

1144664355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26870.

The product of its digits is 172800, while the sum is 39.

The square root of 1144664355 is about 33832.8886588184. Note that the first 3 decimals coincide. The cubic root of 1144664355 is about 1046.0667220629.

The spelling of 1144664355 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, three hundred fifty-five".