6455516842 has 4 divisors (see below), whose sum is σ = 9683275266. Its totient is φ = 3227758420.

The previous prime is 6455516797. The next prime is 6455516891. The reversal of 6455516842 is 2486155546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4498250761 + 1957266081 = 67069^2 + 44241^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6455516792 and 6455516801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1613879209 + ... + 1613879212.

Almost surely, 2^6455516842 is an apocalyptic number.

6455516842 is a deficient number, since it is larger than the sum of its proper divisors (3227758424).

6455516842 is a wasteful number, since it uses less digits than its factorization.

6455516842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3227758423.

The product of its digits is 1152000, while the sum is 46.

The square root of 6455516842 is about 80346.2310379273. The cubic root of 6455516842 is about 1861.9885505989.

The spelling of 6455516842 in words is "six billion, four hundred fifty-five million, five hundred sixteen thousand, eight hundred forty-two".