1640136001611 has 8 divisors (see below), whose sum is σ = 2189791272960. Its totient is φ = 1091952365672.

The previous prime is 1640136001589. The next prime is 1640136001639. The reversal of 1640136001611 is 1161006310461.

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 1640136001611 - 2³⁹ = 1090380187723 is a prime.

It is a super-2 number, since 2×1640136001611² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1640136001711) 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, 367906251 + ... + 367910708.

It is an arithmetic number, because the mean of its divisors is an integer number (273723909120).

Almost surely, 2^{1640136001611} is an apocalyptic number.

1640136001611 is a deficient number, since it is larger than the sum of its proper divisors (549655271349).

1640136001611 is an equidigital number, since it uses as much as digits as its factorization.

1640136001611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735817705.

The product of its (nonzero) digits is 2592, while the sum is 30.

The spelling of 1640136001611 in words is "one trillion, six hundred forty billion, one hundred thirty-six million, one thousand, six hundred eleven".