7666430440431 has 8 divisors (see below), whose sum is σ = 11682179718784. Its totient is φ = 4380817394520.

The previous prime is 7666430440429. The next prime is 7666430440457. The reversal of 7666430440431 is 1340440346667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7666430440431 - 2¹ = 7666430440429 is a prime.

It is a super-2 number, since 2×7666430440431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7666430440631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182534058085 + ... + 182534058126.

It is an arithmetic number, because the mean of its divisors is an integer number (1460272464848).

Almost surely, 2^{7666430440431} is an apocalyptic number.

7666430440431 is a deficient number, since it is larger than the sum of its proper divisors (4015749278353).

7666430440431 is a wasteful number, since it uses less digits than its factorization.

7666430440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365068116221.

The product of its (nonzero) digits is 3483648, while the sum is 48.

The spelling of 7666430440431 in words is "seven trillion, six hundred sixty-six billion, four hundred thirty million, four hundred forty thousand, four hundred thirty-one".