6516142142 has 8 divisors (see below), whose sum is σ = 9777007632. Its totient is φ = 3257139600.

The previous prime is 6516142117. The next prime is 6516142147. The reversal of 6516142142 is 2412416156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6516142099 and 6516142108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6516142147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456959 + ... + 471002.

It is an arithmetic number, because the mean of its divisors is an integer number (1222125954).

Almost surely, 2^6516142142 is an apocalyptic number.

6516142142 is a deficient number, since it is larger than the sum of its proper divisors (3260865490).

6516142142 is a wasteful number, since it uses less digits than its factorization.

6516142142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931474.

The product of its digits is 11520, while the sum is 32.

The square root of 6516142142 is about 80722.6247219452. The cubic root of 6516142142 is about 1867.7991916940.

Adding to 6516142142 its reverse (2412416156), we get a palindrome (8928558298).

The spelling of 6516142142 in words is "six billion, five hundred sixteen million, one hundred forty-two thousand, one hundred forty-two".