1660600851 has 128 divisors (see below), whose sum is σ = 3084189696. Its totient is φ = 769443840.

The previous prime is 1660600847. The next prime is 1660600853. The reversal of 1660600851 is 1580060661.

It is not a de Polignac number, because 1660600851 - 2² = 1660600847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1660600853) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5016756 + ... + 5017086.

It is an arithmetic number, because the mean of its divisors is an integer number (24095232).

Almost surely, 2^1660600851 is an apocalyptic number.

1660600851 is a deficient number, since it is larger than the sum of its proper divisors (1423588845).

1660600851 is a wasteful number, since it uses less digits than its factorization.

1660600851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1660600851 is about 40750.4705617003. The cubic root of 1660600851 is about 1184.1909890477.

The spelling of 1660600851 in words is "one billion, six hundred sixty million, six hundred thousand, eight hundred fifty-one".