611220698816 has 896 divisors, whose sum is σ = 1733862359040. Its totient is φ = 206928691200.

The previous prime is 611220698813. The next prime is 611220698819. The reversal of 611220698816 is 618896022116.

It is an interprime number because it is at equal distance from previous prime (611220698813) and next prime (611220698819).

It is a super-2 number, since 2×611220698816² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (611220698813) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4812761345 + ... + 4812761471.

It is an arithmetic number, because the mean of its divisors is an integer number (1935114240).

Almost surely, 2^611220698816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 611220698816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866931179520).

611220698816 is an abundant number, since it is smaller than the sum of its proper divisors (1122641660224).

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

611220698816 is a wasteful number, since it uses less digits than its factorization.

611220698816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 50.

The spelling of 611220698816 in words is "six hundred eleven billion, two hundred twenty million, six hundred ninety-eight thousand, eight hundred sixteen".