1206660466551 has 16 divisors (see below), whose sum is σ = 1609755622400. Its totient is φ = 804002925888.

The previous prime is 1206660466519. The next prime is 1206660466553. The reversal of 1206660466551 is 1556640666021.

It is not a de Polignac number, because 1206660466551 - 2⁵ = 1206660466519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1206660466551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206660466553) 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, 68322360 + ... + 68340018.

It is an arithmetic number, because the mean of its divisors is an integer number (100609726400).

Almost surely, 2^{1206660466551} is an apocalyptic number.

1206660466551 is a deficient number, since it is larger than the sum of its proper divisors (403095155849).

1206660466551 is a wasteful number, since it uses less digits than its factorization.

1206660466551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28758.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 1206660466551 in words is "one trillion, two hundred six billion, six hundred sixty million, four hundred sixty-six thousand, five hundred fifty-one".