6516142432 has 48 divisors (see below), whose sum is σ = 13606639200. Its totient is φ = 3061147648.

The previous prime is 6516142417. The next prime is 6516142453. The reversal of 6516142432 is 2342416156.

It is a super-2 number, since 2×6516142432² = 84920224388221749248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315858 + ... + 335854.

It is an arithmetic number, because the mean of its divisors is an integer number (283471650).

Almost surely, 2^6516142432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6516142432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6803319600).

6516142432 is an abundant number, since it is smaller than the sum of its proper divisors (7090496768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6516142432 is a wasteful number, since it uses less digits than its factorization.

6516142432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20623 (or 20615 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 6516142432 is about 80722.6265182198. The cubic root of 6516142432 is about 1867.7992194027.

Adding to 6516142432 its reverse (2342416156), we get a palindrome (8858558588).

The spelling of 6516142432 in words is "six billion, five hundred sixteen million, one hundred forty-two thousand, four hundred thirty-two".