65499774 has 16 divisors (see below), whose sum is σ = 131135760. Its totient is φ = 21810560.

The previous prime is 65499773. The next prime is 65499799. The reversal of 65499774 is 47799456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65499773) 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, 1222 + ... + 11510.

It is an arithmetic number, because the mean of its divisors is an integer number (8195985).

Almost surely, 2^65499774 is an apocalyptic number.

65499774 is an abundant number, since it is smaller than the sum of its proper divisors (65635986).

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

65499774 is a wasteful number, since it uses less digits than its factorization.

65499774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11355.

The product of its digits is 1905120, while the sum is 51.

The square root of 65499774 is about 8093.1930657807. The cubic root of 65499774 is about 403.1004353279.

The spelling of 65499774 in words is "sixty-five million, four hundred ninety-nine thousand, seven hundred seventy-four".