74555655548 has 24 divisors (see below), whose sum is σ = 143715411840. Its totient is φ = 33559913520.

The previous prime is 74555655547. The next prime is 74555655563. The reversal of 74555655548 is 84555655547.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74555655547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8220938 + ... + 8230001.

It is an arithmetic number, because the mean of its divisors is an integer number (5988142160).

Almost surely, 2^74555655548 is an apocalyptic number.

It is an amenable number.

74555655548 is a deficient number, since it is larger than the sum of its proper divisors (69159756292).

74555655548 is a wasteful number, since it uses less digits than its factorization.

74555655548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16451057 (or 16451055 counting only the distinct ones).

The product of its digits is 84000000, while the sum is 59.

Subtracting 74555655548 from its reverse (84555655547), we obtain a palindrome (9999999999).

The spelling of 74555655548 in words is "seventy-four billion, five hundred fifty-five million, six hundred fifty-five thousand, five hundred forty-eight".