43002252266661 has 24 divisors (see below), whose sum is σ = 62394086678040. Its totient is φ = 28539326140416.

The previous prime is 43002252266641. The next prime is 43002252266663. The reversal of 43002252266661 is 16666225220034.

It can be written as a sum of positive squares in 4 ways, for example, as 9171394321761 + 33830857944900 = 3028431^2 + 5816430^2 .

It is not a de Polignac number, because 43002252266661 - 2⁵ = 43002252266629 is a prime.

It is a super-2 number, since 2×43002252266661² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43002252266663) 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, 8875596 + ... + 12836693.

It is an arithmetic number, because the mean of its divisors is an integer number (2599753611585).

Almost surely, 2^{43002252266661} is an apocalyptic number.

It is an amenable number.

43002252266661 is a deficient number, since it is larger than the sum of its proper divisors (19391834411379).

43002252266661 is a wasteful number, since it uses less digits than its factorization.

43002252266661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21713285 (or 21713282 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

Adding to 43002252266661 its reverse (16666225220034), we get a palindrome (59668477486695).

The spelling of 43002252266661 in words is "forty-three trillion, two billion, two hundred fifty-two million, two hundred sixty-six thousand, six hundred sixty-one".