66225142 has 16 divisors (see below), whose sum is σ = 103864320. Its totient is φ = 31609512.

The previous prime is 66225139. The next prime is 66225157. The reversal of 66225142 is 24152266.

It is a self number, because there is not a number n which added to its sum of digits gives 66225142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28459 + ... + 30697.

It is an arithmetic number, because the mean of its divisors is an integer number (6491520).

Almost surely, 2^66225142 is an apocalyptic number.

66225142 is a deficient number, since it is larger than the sum of its proper divisors (37639178).

66225142 is a wasteful number, since it uses less digits than its factorization.

66225142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907.

The product of its digits is 5760, while the sum is 28.

The square root of 66225142 is about 8137.8831399818. The cubic root of 66225142 is about 404.5830021838.

The spelling of 66225142 in words is "sixty-six million, two hundred twenty-five thousand, one hundred forty-two".