65650738 has 24 divisors (see below), whose sum is σ = 105338880. Its totient is φ = 30677400.

The previous prime is 65650733. The next prime is 65650769. The reversal of 65650738 is 83705656.

It is a self number, because there is not a number n which added to its sum of digits gives 65650738.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65650733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56463 + ... + 57613.

It is an arithmetic number, because the mean of its divisors is an integer number (4389120).

Almost surely, 2^65650738 is an apocalyptic number.

65650738 is a deficient number, since it is larger than the sum of its proper divisors (39688142).

65650738 is a wasteful number, since it uses less digits than its factorization.

65650738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1251 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 65650738 is about 8102.5143011290. The cubic root of 65650738 is about 403.4098865840.

The spelling of 65650738 in words is "sixty-five million, six hundred fifty thousand, seven hundred thirty-eight".