6345212120 has 32 divisors (see below), whose sum is σ = 15374938320. Its totient is φ = 2342847360.

The previous prime is 6345212113. The next prime is 6345212123. The reversal of 6345212120 is 212125436.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 6345212120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6345212123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6100646 + ... + 6101685.

Almost surely, 2^6345212120 is an apocalyptic number.

It is an amenable number.

6345212120 is an abundant number, since it is smaller than the sum of its proper divisors (9029726200).

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

6345212120 is a wasteful number, since it uses less digits than its factorization.

6345212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12202355 (or 12202351 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 6345212120 is about 79656.8397565457. The cubic root of 6345212120 is about 1851.3223679223.

Adding to 6345212120 its reverse (212125436), we get a palindrome (6557337556).

The spelling of 6345212120 in words is "six billion, three hundred forty-five million, two hundred twelve thousand, one hundred twenty".