1206660619671 has 16 divisors (see below), whose sum is σ = 1748833801344. Its totient is φ = 735620562144.

The previous prime is 1206660619663. The next prime is 1206660619733. The reversal of 1206660619671 is 1769160666021.

It is not a de Polignac number, because 1206660619671 - 2³ = 1206660619663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206660619621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144575341 + ... + 144583686.

It is an arithmetic number, because the mean of its divisors is an integer number (109302112584).

Almost surely, 2^{1206660619671} is an apocalyptic number.

1206660619671 is a deficient number, since it is larger than the sum of its proper divisors (542173181673).

1206660619671 is a wasteful number, since it uses less digits than its factorization.

1206660619671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289159150.

The product of its (nonzero) digits is 979776, while the sum is 51.

The spelling of 1206660619671 in words is "one trillion, two hundred six billion, six hundred sixty million, six hundred nineteen thousand, six hundred seventy-one".