65406055552 has 32 divisors (see below), whose sum is σ = 130335473520. Its totient is φ = 32694407424.

The previous prime is 65406055513. The next prime is 65406055571. The reversal of 65406055552 is 25555060456.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 65406055499 and 65406055508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434703 + ... + 565489.

Almost surely, 2^65406055552 is an apocalyptic number.

It is an amenable number.

65406055552 is a deficient number, since it is larger than the sum of its proper divisors (64929417968).

65406055552 is a wasteful number, since it uses less digits than its factorization.

65406055552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134708 (or 134696 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 43.

The spelling of 65406055552 in words is "sixty-five billion, four hundred six million, fifty-five thousand, five hundred fifty-two".