74148155556 has 12 divisors (see below), whose sum is σ = 173012362992. Its totient is φ = 24716051848.

The previous prime is 74148155551. The next prime is 74148155561. The reversal of 74148155556 is 65555184147.

It is an interprime number because it is at equal distance from previous prime (74148155551) and next prime (74148155561).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 74148155499 and 74148155508.

It is not an unprimeable number, because it can be changed into a prime (74148155551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089506470 + ... + 3089506493.

It is an arithmetic number, because the mean of its divisors is an integer number (14417696916).

Almost surely, 2^74148155556 is an apocalyptic number.

It is an amenable number.

74148155556 is an abundant number, since it is smaller than the sum of its proper divisors (98864207436).

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

74148155556 is a wasteful number, since it uses less digits than its factorization.

74148155556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6179012970 (or 6179012968 counting only the distinct ones).

The product of its digits is 3360000, while the sum is 51.

The spelling of 74148155556 in words is "seventy-four billion, one hundred forty-eight million, one hundred fifty-five thousand, five hundred fifty-six".