1640666760107 has 8 divisors (see below), whose sum is σ = 1699108088832. Its totient is φ = 1582570218600.

The previous prime is 1640666760091. The next prime is 1640666760179. The reversal of 1640666760107 is 7010676660461.

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

It is a cyclic number.

It is not a de Polignac number, because 1640666760107 - 2⁴ = 1640666760091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1640666760307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86187119 + ... + 86206152.

It is an arithmetic number, because the mean of its divisors is an integer number (212388511104).

Almost surely, 2^{1640666760107} is an apocalyptic number.

1640666760107 is a deficient number, since it is larger than the sum of its proper divisors (58441328725).

1640666760107 is a wasteful number, since it uses less digits than its factorization.

1640666760107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172393609.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 1640666760107 in words is "one trillion, six hundred forty billion, six hundred sixty-six million, seven hundred sixty thousand, one hundred seven".