1660052649 has 8 divisors (see below), whose sum is σ = 2267389152. Its totient is φ = 1079708960.

The previous prime is 1660052617. The next prime is 1660052651. The reversal of 1660052649 is 9462500661.

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 1660052649 - 2⁵ = 1660052617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1660052659) 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, 6748059 + ... + 6748304.

It is an arithmetic number, because the mean of its divisors is an integer number (283423644).

Almost surely, 2^1660052649 is an apocalyptic number.

It is an amenable number.

1660052649 is a deficient number, since it is larger than the sum of its proper divisors (607336503).

1660052649 is a wasteful number, since it uses less digits than its factorization.

1660052649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13496407.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1660052649 is about 40743.7436792448. The cubic root of 1660052649 is about 1184.0606652722.

The spelling of 1660052649 in words is "one billion, six hundred sixty million, fifty-two thousand, six hundred forty-nine".