1660106650651 has 8 divisors (see below), whose sum is σ = 1717582417200. Its totient is φ = 1602646264800.

The previous prime is 1660106650619. The next prime is 1660106650679. The reversal of 1660106650651 is 1560566010661.

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 1660106650651 - 2⁵ = 1660106650619 is a prime.

It is a super-3 number, since 3×1660106650651³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1660106650598 and 1660106650607.

It is not an unprimeable number, because it can be changed into a prime (1660106650151) 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, 3625356 + ... + 4057513.

It is an arithmetic number, because the mean of its divisors is an integer number (214697802150).

Almost surely, 2^{1660106650651} is an apocalyptic number.

1660106650651 is a deficient number, since it is larger than the sum of its proper divisors (57475766549).

1660106650651 is an equidigital number, since it uses as much as digits as its factorization.

1660106650651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690349.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1660106650651 in words is "one trillion, six hundred sixty billion, one hundred six million, six hundred fifty thousand, six hundred fifty-one".