51106655511606 has 32 divisors (see below), whose sum is σ = 104706850979808. Its totient is φ = 16619966069760.

The previous prime is 51106655511581. The next prime is 51106655511619. The reversal of 51106655511606 is 60611555660115.

It is a super-2 number, since 2×51106655511606² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63891426 + ... + 64686378.

It is an arithmetic number, because the mean of its divisors is an integer number (3272089093119).

Almost surely, 2^{51106655511606} is an apocalyptic number.

51106655511606 is an abundant number, since it is smaller than the sum of its proper divisors (53600195468202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51106655511606 is a wasteful number, since it uses less digits than its factorization.

51106655511606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056336.

The product of its (nonzero) digits is 810000, while the sum is 48.

The spelling of 51106655511606 in words is "fifty-one trillion, one hundred six billion, six hundred fifty-five million, five hundred eleven thousand, six hundred six".