55851466415855 has 16 divisors (see below), whose sum is σ = 73162031791104. Its totient is φ = 40592923387680.

The previous prime is 55851466415839. The next prime is 55851466415861.

55851466415855 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55851466415855 - 2⁴ = 55851466415839 is a prime.

It is a Duffinian number.

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, 328975799 + ... + 329145528.

It is an arithmetic number, because the mean of its divisors is an integer number (4572626986944).

Almost surely, 2^{55851466415855} is an apocalyptic number.

55851466415855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55851466415855 is a deficient number, since it is larger than the sum of its proper divisors (17310565375249).

55851466415855 is a wasteful number, since it uses less digits than its factorization.

55851466415855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658122886.

The product of its digits is 576000000, while the sum is 68.

The spelling of 55851466415855 in words is "fifty-five trillion, eight hundred fifty-one billion, four hundred sixty-six million, four hundred fifteen thousand, eight hundred fifty-five".