55071346386 has 64 divisors (see below), whose sum is σ = 128389349376. Its totient is φ = 15423240000.

The previous prime is 55071346381. The next prime is 55071346427. The reversal of 55071346386 is 68364317055.

It is not an unprimeable number, because it can be changed into a prime (55071346381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462511 + ... + 569261.

It is an arithmetic number, because the mean of its divisors is an integer number (2006083584).

Almost surely, 2^55071346386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55071346386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64194674688).

55071346386 is an abundant number, since it is smaller than the sum of its proper divisors (73318002990).

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

55071346386 is a wasteful number, since it uses less digits than its factorization.

55071346386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107007.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 55071346386 in words is "fifty-five billion, seventy-one million, three hundred forty-six thousand, three hundred eighty-six".