65647642764074 has 16 divisors (see below), whose sum is σ = 118461911755200. Its totient is φ = 26653930144704.

The previous prime is 65647642764071. The next prime is 65647642764083. The reversal of 65647642764074 is 47046724674656.

It is a super-2 number, since 2×65647642764074² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65647642763995 and 65647642764013.

It is not an unprimeable number, because it can be changed into a prime (65647642764071) 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, 123397824479 + ... + 123397825010.

It is an arithmetic number, because the mean of its divisors is an integer number (7403869484700).

Almost surely, 2^{65647642764074} is an apocalyptic number.

65647642764074 is a deficient number, since it is larger than the sum of its proper divisors (52814268991126).

65647642764074 is a wasteful number, since it uses less digits than its factorization.

65647642764074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246795649517.

The product of its (nonzero) digits is 1137991680, while the sum is 68.

The spelling of 65647642764074 in words is "sixty-five trillion, six hundred forty-seven billion, six hundred forty-two million, seven hundred sixty-four thousand, seventy-four".