55167421004 has 12 divisors (see below), whose sum is σ = 102221986104. Its totient is φ = 25961139264.

The previous prime is 55167420967. The next prime is 55167421031. The reversal of 55167421004 is 40012476155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405642734 + ... + 405642869.

It is an arithmetic number, because the mean of its divisors is an integer number (8518498842).

Almost surely, 2^55167421004 is an apocalyptic number.

It is an amenable number.

55167421004 is a deficient number, since it is larger than the sum of its proper divisors (47054565100).

55167421004 is a wasteful number, since it uses less digits than its factorization.

55167421004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811285624 (or 811285622 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

Adding to 55167421004 its reverse (40012476155), we get a palindrome (95179897159).

The spelling of 55167421004 in words is "fifty-five billion, one hundred sixty-seven million, four hundred twenty-one thousand, four".