611563533416 has 64 divisors (see below), whose sum is σ = 1294805952000. Its totient is φ = 268243234560.

The previous prime is 611563533341. The next prime is 611563533479. The reversal of 611563533416 is 614335365116.

It is a super-3 number, since 3×611563533416³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4420850 + ... + 4557086.

It is an arithmetic number, because the mean of its divisors is an integer number (20231343000).

Almost surely, 2^611563533416 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 611563533416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647402976000).

611563533416 is an abundant number, since it is smaller than the sum of its proper divisors (683242418584).

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

611563533416 is a wasteful number, since it uses less digits than its factorization.

611563533416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138042 (or 138038 counting only the distinct ones).

The product of its digits is 583200, while the sum is 44.

The spelling of 611563533416 in words is "six hundred eleven billion, five hundred sixty-three million, five hundred thirty-three thousand, four hundred sixteen".