66575142 has 32 divisors (see below), whose sum is σ = 148671360. Its totient is φ = 22082760.

The previous prime is 66575101. The next prime is 66575143. The reversal of 66575142 is 24157566.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66575097 and 66575106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66575143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8473 + ... + 14315.

It is an arithmetic number, because the mean of its divisors is an integer number (4645980).

Almost surely, 2^66575142 is an apocalyptic number.

66575142 is an abundant number, since it is smaller than the sum of its proper divisors (82096218).

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

66575142 is a wasteful number, since it uses less digits than its factorization.

66575142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065 (or 6059 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 66575142 is about 8159.3591660130. The cubic root of 66575142 is about 405.2944908880.

The spelling of 66575142 in words is "sixty-six million, five hundred seventy-five thousand, one hundred forty-two".