611021522216 has 48 divisors (see below), whose sum is σ = 1332892834740. Its totient is φ = 261830983680.

The previous prime is 611021522213. The next prime is 611021522219. The reversal of 611021522216 is 612225120116.

It is an interprime number because it is at equal distance from previous prime (611021522213) and next prime (611021522219).

It can be written as a sum of positive squares in 2 ways, for example, as 557044293316 + 53977228900 = 746354^2 + 232330^2 .

It is a super-2 number, since 2×611021522216² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (611021522213) 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, 2909486 + ... + 3112418.

Almost surely, 2^611021522216 is an apocalyptic number.

It is an amenable number.

611021522216 is an abundant number, since it is smaller than the sum of its proper divisors (721871312524).

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

611021522216 is a wasteful number, since it uses less digits than its factorization.

611021522216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210634 (or 210623 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The spelling of 611021522216 in words is "six hundred eleven billion, twenty-one million, five hundred twenty-two thousand, two hundred sixteen".