666306146435 has 16 divisors (see below), whose sum is σ = 836432373600. Its totient is φ = 508881305856.

The previous prime is 666306146371. The next prime is 666306146437. The reversal of 666306146435 is 534641603666.

It is a cyclic number.

It is not a de Polignac number, because 666306146435 - 2⁶ = 666306146371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666306146437) 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, 25802909 + ... + 25828718.

It is an arithmetic number, because the mean of its divisors is an integer number (52277023350).

Almost surely, 2^666306146435 is an apocalyptic number.

666306146435 is a deficient number, since it is larger than the sum of its proper divisors (170126227165).

666306146435 is a wasteful number, since it uses less digits than its factorization.

666306146435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51631750.

The product of its (nonzero) digits is 5598720, while the sum is 50.

The spelling of 666306146435 in words is "six hundred sixty-six billion, three hundred six million, one hundred forty-six thousand, four hundred thirty-five".