65997150 has 24 divisors (see below), whose sum is σ = 163673304. Its totient is φ = 17599200.

The previous prime is 65997133. The next prime is 65997157. The reversal of 65997150 is 5179956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65997157) 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, 219841 + ... + 220140.

It is an arithmetic number, because the mean of its divisors is an integer number (6819721).

Almost surely, 2^65997150 is an apocalyptic number.

65997150 is an abundant number, since it is smaller than the sum of its proper divisors (97676154).

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

65997150 is a wasteful number, since it uses less digits than its factorization.

65997150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439996 (or 439991 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 65997150 is about 8123.8629973677. The cubic root of 65997150 is about 404.1181850421.

The spelling of 65997150 in words is "sixty-five million, nine hundred ninety-seven thousand, one hundred fifty".