55148154678 has 12 divisors (see below), whose sum is σ = 119487668508. Its totient is φ = 18382718220.

The previous prime is 55148154667. The next prime is 55148154701. The reversal of 55148154678 is 87645184155.

55148154678 is a `hidden beast` number, since 5 + 5 + 14 + 81 + 546 + 7 + 8 = 666.

It is a super-2 number, since 2×55148154678² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1531893168 + ... + 1531893203.

It is an arithmetic number, because the mean of its divisors is an integer number (9957305709).

Almost surely, 2^55148154678 is an apocalyptic number.

55148154678 is an abundant number, since it is smaller than the sum of its proper divisors (64339513830).

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

55148154678 is a wasteful number, since it uses less digits than its factorization.

55148154678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063786379 (or 3063786376 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 54.

The spelling of 55148154678 in words is "fifty-five billion, one hundred forty-eight million, one hundred fifty-four thousand, six hundred seventy-eight".