7744100661144 has 24 divisors (see below), whose sum is σ = 20973605957460. Its totient is φ = 2581366887024.

The previous prime is 7744100661107. The next prime is 7744100661149. The reversal of 7744100661144 is 4411660014477.

7744100661144 is a `hidden beast` number, since 7 + 7 + 441 + 0 + 0 + 6 + 61 + 144 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×7744100661144² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7744100661144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7744100661149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53778476742 + ... + 53778476885.

Almost surely, 2^{7744100661144} is an apocalyptic number.

It is an amenable number.

7744100661144 is an abundant number, since it is smaller than the sum of its proper divisors (13229505296316).

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

7744100661144 is a wasteful number, since it uses less digits than its factorization.

7744100661144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107556953639 (or 107556953632 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 7744100661144 in words is "seven trillion, seven hundred forty-four billion, one hundred million, six hundred sixty-one thousand, one hundred forty-four".