1966095515 has 16 divisors (see below), whose sum is σ = 2398126080. Its totient is φ = 1547151840.

The previous prime is 1966095511. The next prime is 1966095517. The reversal of 1966095515 is 5155906691.

It is not a de Polignac number, because 1966095515 - 2² = 1966095511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1966095515.

It is not an unprimeable number, because it can be changed into a prime (1966095511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97862 + ... + 116228.

It is an arithmetic number, because the mean of its divisors is an integer number (149882880).

Almost surely, 2^1966095515 is an apocalyptic number.

1966095515 is a deficient number, since it is larger than the sum of its proper divisors (432030565).

1966095515 is a wasteful number, since it uses less digits than its factorization.

1966095515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18722.

The product of its (nonzero) digits is 364500, while the sum is 47.

The square root of 1966095515 is about 44340.6756263366. The cubic root of 1966095515 is about 1252.7609404763.

The spelling of 1966095515 in words is "one billion, nine hundred sixty-six million, ninety-five thousand, five hundred fifteen".