65919468 has 48 divisors (see below), whose sum is σ = 156862944. Its totient is φ = 21542400.

The previous prime is 65919457. The next prime is 65919479. The reversal of 65919468 is 86491956.

It is an interprime number because it is at equal distance from previous prime (65919457) and next prime (65919479).

It is a super-2 number, since 2×65919468² = 8690752522806048, which contains 22 as substring.

Its product of digits (466560) is a multiple of the sum of its prime divisors (640).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165846 + ... + 166242.

It is an arithmetic number, because the mean of its divisors is an integer number (3267978).

Almost surely, 2^65919468 is an apocalyptic number.

It is an amenable number.

65919468 is an abundant number, since it is smaller than the sum of its proper divisors (90943476).

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

65919468 is a wasteful number, since it uses less digits than its factorization.

65919468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 65919468 is about 8119.0804898092. The cubic root of 65919468 is about 403.9595669106.

The spelling of 65919468 in words is "sixty-five million, nine hundred nineteen thousand, four hundred sixty-eight".