1966740067 has 8 divisors (see below), whose sum is σ = 2057421600. Its totient is φ = 1877582784.

The previous prime is 1966740049. The next prime is 1966740071. The reversal of 1966740067 is 7600476691.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1966740067 is a prime.

It is a super-2 number, since 2×1966740067² = 7736132982286328978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1966739999 and 1966740026.

It is not an unprimeable number, because it can be changed into a prime (1966740007) 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, 378423 + ... + 383584.

It is an arithmetic number, because the mean of its divisors is an integer number (257177700).

Almost surely, 2^1966740067 is an apocalyptic number.

1966740067 is a deficient number, since it is larger than the sum of its proper divisors (90681533).

1966740067 is an equidigital number, since it uses as much as digits as its factorization.

1966740067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762125.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 1966740067 is about 44347.9432104805. The cubic root of 1966740067 is about 1252.8978245258.

The spelling of 1966740067 in words is "one billion, nine hundred sixty-six million, seven hundred forty thousand, sixty-seven".