44297138655 has 240 divisors, whose sum is σ = 100333804032. Its totient is φ = 18301852800.

The previous prime is 44297138653. The next prime is 44297138737. The reversal of 44297138655 is 55683179244.

It is a happy number.

44297138655 is a `hidden beast` number, since 442 + 9 + 7 + 138 + 65 + 5 = 666.

It is not a de Polignac number, because 44297138655 - 2¹ = 44297138653 is a prime.

Its product of digits (7257600) is a multiple of the sum of its prime factors (800).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44297138653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 90217960 + ... + 90218450.

Almost surely, 2^44297138655 is an apocalyptic number.

44297138655 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

44297138655 is an abundant number, since it is smaller than the sum of its proper divisors (56036665377).

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

44297138655 is a wasteful number, since it uses less digits than its factorization.

44297138655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 780 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The spelling of 44297138655 in words is "forty-four billion, two hundred ninety-seven million, one hundred thirty-eight thousand, six hundred fifty-five".