65455003994 has 12 divisors (see below), whose sum is σ = 100839477822. Its totient is φ = 31841904240.

The previous prime is 65455003993. The next prime is 65455004029. The reversal of 65455003994 is 49930055456.

It can be written as a sum of positive squares in 3 ways, for example, as 60374878369 + 5080125625 = 245713^2 + 71275^2 .

It is not an unprimeable number, because it can be changed into a prime (65455003993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2185964 + ... + 2215704.

Almost surely, 2^65455003994 is an apocalyptic number.

65455003994 is a deficient number, since it is larger than the sum of its proper divisors (35384473828).

65455003994 is an frugal number, since it uses more digits than its factorization.

65455003994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59521 (or 29780 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 50.

The spelling of 65455003994 in words is "sixty-five billion, four hundred fifty-five million, three thousand, nine hundred ninety-four".