6215506120 has 16 divisors (see below), whose sum is σ = 13984888860. Its totient is φ = 2486202432.

The previous prime is 6215506109. The next prime is 6215506139. The reversal of 6215506120 is 216055126.

It can be written as a sum of positive squares in 2 ways, for example, as 6084312004 + 131194116 = 78002^2 + 11454^2 .

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, 77693787 + ... + 77693866.

Almost surely, 2^6215506120 is an apocalyptic number.

It is an amenable number.

6215506120 is an abundant number, since it is smaller than the sum of its proper divisors (7769382740).

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

6215506120 is a wasteful number, since it uses less digits than its factorization.

6215506120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155387664 (or 155387660 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6215506120 is about 78838.4812131741. The cubic root of 6215506120 is about 1838.6207882740.

The spelling of 6215506120 in words is "six billion, two hundred fifteen million, five hundred six thousand, one hundred twenty".