6513223156 has 12 divisors (see below), whose sum is σ = 12434335200. Its totient is φ = 2960555960.

The previous prime is 6513223133. The next prime is 6513223193.

6513223156 is nontrivially palindromic in base 10.

It is a congruent number.

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, 74013856 + ... + 74013943.

It is an arithmetic number, because the mean of its divisors is an integer number (1036194600).

Almost surely, 2^6513223156 is an apocalyptic number.

It is an amenable number.

6513223156 is a deficient number, since it is larger than the sum of its proper divisors (5921112044).

6513223156 is a wasteful number, since it uses less digits than its factorization.

6513223156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148027814 (or 148027812 counting only the distinct ones).

The product of its digits is 32400, while the sum is 34.

The square root of 6513223156 is about 80704.5423504774. The cubic root of 6513223156 is about 1867.5202488326.

It can be divided in two parts, 65132 and 23156, that added together give a palindrome (88288).

The spelling of 6513223156 in words is "six billion, five hundred thirteen million, two hundred twenty-three thousand, one hundred fifty-six".