55061651566 has 16 divisors (see below), whose sum is σ = 82925791200. Its totient is φ = 27419913088.

The previous prime is 55061651461. The next prime is 55061651599. The reversal of 55061651566 is 66515616055.

55061651566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533466 + ... + 628258.

It is an arithmetic number, because the mean of its divisors is an integer number (5182861950).

Almost surely, 2^55061651566 is an apocalyptic number.

55061651566 is a deficient number, since it is larger than the sum of its proper divisors (27864139634).

55061651566 is a wasteful number, since it uses less digits than its factorization.

55061651566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95963.

The product of its (nonzero) digits is 810000, while the sum is 46.

The spelling of 55061651566 in words is "fifty-five billion, sixty-one million, six hundred fifty-one thousand, five hundred sixty-six".