6212155516 has 36 divisors (see below), whose sum is σ = 12654425448. Its totient is φ = 2660615328.

The previous prime is 6212155471. The next prime is 6212155517. The reversal of 6212155516 is 6155512126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6212155517) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 317226 + ... + 336238.

It is an arithmetic number, because the mean of its divisors is an integer number (351511818).

Almost surely, 2^6212155516 is an apocalyptic number.

It is an amenable number.

6212155516 is an abundant number, since it is smaller than the sum of its proper divisors (6442269932).

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

6212155516 is a wasteful number, since it uses less digits than its factorization.

6212155516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20698 (or 20689 counting only the distinct ones).

The product of its digits is 18000, while the sum is 34.

The square root of 6212155516 is about 78817.2285480782. The cubic root of 6212155516 is about 1838.2903460240.

The spelling of 6212155516 in words is "six billion, two hundred twelve million, one hundred fifty-five thousand, five hundred sixteen".