55751661406 has 8 divisors (see below), whose sum is σ = 95574276720. Its totient is φ = 23893569168.

The previous prime is 55751661401. The next prime is 55751661431. The reversal of 55751661406 is 60416615755.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55751661401) by changing a digit.

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, 1991130751 + ... + 1991130778.

It is an arithmetic number, because the mean of its divisors is an integer number (11946784590).

Almost surely, 2^55751661406 is an apocalyptic number.

55751661406 is a deficient number, since it is larger than the sum of its proper divisors (39822615314).

55751661406 is a wasteful number, since it uses less digits than its factorization.

55751661406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982261538.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 55751661406 in words is "fifty-five billion, seven hundred fifty-one million, six hundred sixty-one thousand, four hundred six".