15551655156106 has 8 divisors (see below), whose sum is σ = 23336342401284. Its totient is φ = 7772874355680.

The previous prime is 15551655156077. The next prime is 15551655156151. The reversal of 15551655156106 is 60165155615551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15286074687081 + 265580469025 = 3909741^2 + 515345^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1476604605 + ... + 1476615136.

Almost surely, 2^{15551655156106} is an apocalyptic number.

15551655156106 is a deficient number, since it is larger than the sum of its proper divisors (7784687245178).

15551655156106 is a wasteful number, since it uses less digits than its factorization.

15551655156106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2953222376.

The product of its (nonzero) digits is 3375000, while the sum is 52.

The spelling of 15551655156106 in words is "fifteen trillion, five hundred fifty-one billion, six hundred fifty-five million, one hundred fifty-six thousand, one hundred six".