1206406103015 has 4 divisors (see below), whose sum is σ = 1447687323624. Its totient is φ = 965124882408.

The previous prime is 1206406102973. The next prime is 1206406103033. The reversal of 1206406103015 is 5103016046021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206406103015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 120640610297 + ... + 120640610306.

It is an arithmetic number, because the mean of its divisors is an integer number (361921830906).

Almost surely, 2^{1206406103015} is an apocalyptic number.

1206406103015 is a deficient number, since it is larger than the sum of its proper divisors (241281220609).

1206406103015 is an equidigital number, since it uses as much as digits as its factorization.

1206406103015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241281220608.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 1206406103015 in words is "one trillion, two hundred six billion, four hundred six million, one hundred three thousand, fifteen".