65437394011 has 16 divisors (see below), whose sum is σ = 75153836160. Its totient is φ = 56349751680.

The previous prime is 65437394003. The next prime is 65437394039. The reversal of 65437394011 is 11049373456.

It is a cyclic number.

It is not a de Polignac number, because 65437394011 - 2³ = 65437394003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65437394411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1892500 + ... + 1926766.

It is an arithmetic number, because the mean of its divisors is an integer number (4697114760).

Almost surely, 2^65437394011 is an apocalyptic number.

65437394011 is a deficient number, since it is larger than the sum of its proper divisors (9716442149).

65437394011 is a wasteful number, since it uses less digits than its factorization.

65437394011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43434.

The product of its (nonzero) digits is 272160, while the sum is 43.

The spelling of 65437394011 in words is "sixty-five billion, four hundred thirty-seven million, three hundred ninety-four thousand, eleven".