1965277966 has 8 divisors (see below), whose sum is σ = 2948300280. Its totient is φ = 982511208.

The previous prime is 1965277961. The next prime is 1965277967. The reversal of 1965277966 is 6697725691.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1965277966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965277961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43341 + ... + 76216.

It is an arithmetic number, because the mean of its divisors is an integer number (368537535).

Almost surely, 2^1965277966 is an apocalyptic number.

1965277966 is a deficient number, since it is larger than the sum of its proper divisors (983022314).

1965277966 is a wasteful number, since it uses less digits than its factorization.

1965277966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127778.

The product of its digits is 8573040, while the sum is 58.

The square root of 1965277966 is about 44331.4557171316. The cubic root of 1965277966 is about 1252.5872738631.

The spelling of 1965277966 in words is "one billion, nine hundred sixty-five million, two hundred seventy-seven thousand, nine hundred sixty-six".