1660511196 has 18 divisors (see below), whose sum is σ = 4197403392. Its totient is φ = 553503720.

The previous prime is 1660511189. The next prime is 1660511207. The reversal of 1660511196 is 6911150661.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 46125311 = 1660511196 / (1 + 6 + 6 + 0 + 5 + 1 + 1 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1660511196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23062620 + ... + 23062691.

Almost surely, 2^1660511196 is an apocalyptic number.

It is an amenable number.

1660511196 is an abundant number, since it is smaller than the sum of its proper divisors (2536892196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1660511196 is a wasteful number, since it uses less digits than its factorization.

1660511196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46125321 (or 46125316 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 1660511196 is about 40749.3704982052. The cubic root of 1660511196 is about 1184.1696773733.

The spelling of 1660511196 in words is "one billion, six hundred sixty million, five hundred eleven thousand, one hundred ninety-six".