74145625391166 has 32 divisors (see below), whose sum is σ = 173417010885888. Its totient is φ = 20691802434240.

The previous prime is 74145625391153. The next prime is 74145625391191. The reversal of 74145625391166 is 66119352654147.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20527579975 + ... + 20527583586.

It is an arithmetic number, because the mean of its divisors is an integer number (5419281590184).

Almost surely, 2^{74145625391166} is an apocalyptic number.

74145625391166 is an abundant number, since it is smaller than the sum of its proper divisors (99271385494722).

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

74145625391166 is a wasteful number, since it uses less digits than its factorization.

74145625391166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41055163616.

The product of its digits is 32659200, while the sum is 60.

The spelling of 74145625391166 in words is "seventy-four trillion, one hundred forty-five billion, six hundred twenty-five million, three hundred ninety-one thousand, one hundred sixty-six".