66201292 has 6 divisors (see below), whose sum is σ = 115852268. Its totient is φ = 33100644.

The previous prime is 66201257. The next prime is 66201307. The reversal of 66201292 is 29210266.

It is a super-2 number, since 2×66201292² = 8765222124938528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66201292.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8275158 + ... + 8275165.

Almost surely, 2^66201292 is an apocalyptic number.

It is an amenable number.

66201292 is a deficient number, since it is larger than the sum of its proper divisors (49650976).

66201292 is a wasteful number, since it uses less digits than its factorization.

66201292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16550327 (or 16550325 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 66201292 is about 8136.4176392317. The cubic root of 66201292 is about 404.5344281685.

The spelling of 66201292 in words is "sixty-six million, two hundred one thousand, two hundred ninety-two".