66257202 has 16 divisors (see below), whose sum is σ = 144561312. Its totient is φ = 20077920.

The previous prime is 66257179. The next prime is 66257239. The reversal of 66257202 is 20275266.

It is a self number, because there is not a number n which added to its sum of digits gives 66257202.

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, 501883 + ... + 502014.

It is an arithmetic number, because the mean of its divisors is an integer number (9035082).

Almost surely, 2^66257202 is an apocalyptic number.

66257202 is an abundant number, since it is smaller than the sum of its proper divisors (78304110).

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

66257202 is a wasteful number, since it uses less digits than its factorization.

66257202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003913.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 66257202 is about 8139.8527013700. The cubic root of 66257202 is about 404.6482786942.

The spelling of 66257202 in words is "sixty-six million, two hundred fifty-seven thousand, two hundred two".