65490160 has 40 divisors (see below), whose sum is σ = 152601840. Its totient is φ = 26138112.

The previous prime is 65490157. The next prime is 65490163. The reversal of 65490160 is 6109456.

It is an interprime number because it is at equal distance from previous prime (65490157) and next prime (65490163).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×65490160² = 8577922113651200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65490163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68244 + ... + 69196.

It is an arithmetic number, because the mean of its divisors is an integer number (3815046).

Almost surely, 2^65490160 is an apocalyptic number.

It is an amenable number.

65490160 is an abundant number, since it is smaller than the sum of its proper divisors (87111680).

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

65490160 is a wasteful number, since it uses less digits than its factorization.

65490160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 65490160 is about 8092.5990880557. The cubic root of 65490160 is about 403.0807121188.

The spelling of 65490160 in words is "sixty-five million, four hundred ninety thousand, one hundred sixty".