612265626616 has 128 divisors (see below), whose sum is σ = 1395763200000. Its totient is φ = 245945331072.

The previous prime is 612265626611. The next prime is 612265626617. The reversal of 612265626616 is 616626562216.

It is a super-2 number, since 2×612265626616² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 612265626616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612265626611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164276545 + ... + 164280271.

It is an arithmetic number, because the mean of its divisors is an integer number (10904400000).

Almost surely, 2^612265626616 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 612265626616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697881600000).

612265626616 is an abundant number, since it is smaller than the sum of its proper divisors (783497573384).

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

612265626616 is a wasteful number, since it uses less digits than its factorization.

612265626616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361 (or 5357 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The spelling of 612265626616 in words is "six hundred twelve billion, two hundred sixty-five million, six hundred twenty-six thousand, six hundred sixteen".