65266990 has 8 divisors (see below), whose sum is σ = 117480600. Its totient is φ = 26106792.

The previous prime is 65266987. The next prime is 65267021. The reversal of 65266990 is 9966256.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3263340 + ... + 3263359.

It is an arithmetic number, because the mean of its divisors is an integer number (14685075).

Almost surely, 2^65266990 is an apocalyptic number.

65266990 is a deficient number, since it is larger than the sum of its proper divisors (52213610).

65266990 is a wasteful number, since it uses less digits than its factorization.

65266990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526706.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 65266990 is about 8078.7987968509. The cubic root of 65266990 is about 402.6223333511.

The spelling of 65266990 in words is "sixty-five million, two hundred sixty-six thousand, nine hundred ninety".