65662494 has 16 divisors (see below), whose sum is σ = 134874768. Its totient is φ = 21295872.

The previous prime is 65662489. The next prime is 65662507. The reversal of 65662494 is 49426656.

65662494 = 1333² + 1334² + ... + 1368².

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147667 + ... + 148110.

It is an arithmetic number, because the mean of its divisors is an integer number (8429673).

Almost surely, 2^65662494 is an apocalyptic number.

65662494 is an abundant number, since it is smaller than the sum of its proper divisors (69212274).

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

65662494 is a wasteful number, since it uses less digits than its factorization.

65662494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295819.

The product of its digits is 311040, while the sum is 42.

The square root of 65662494 is about 8103.2397224814. The cubic root of 65662494 is about 403.4339645239.

The spelling of 65662494 in words is "sixty-five million, six hundred sixty-two thousand, four hundred ninety-four".