612551155216 has 120 divisors (see below), whose sum is σ = 1621945188864. Its totient is φ = 220298077440.

The previous prime is 612551155213. The next prime is 612551155231.

612551155216 is nontrivially palindromic in base 10.

612551155216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×612551155216² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (612551155213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2619760 + ... + 2843983.

Almost surely, 2^612551155216 is an apocalyptic number.

It is an amenable number.

612551155216 is an abundant number, since it is smaller than the sum of its proper divisors (1009394033648).

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

612551155216 is a wasteful number, since it uses less digits than its factorization.

612551155216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5463789 (or 5463776 counting only the distinct ones).

The product of its digits is 90000, while the sum is 40.

It can be divided in two parts, 612551 and 155216, that added together give a palindrome (767767).

The spelling of 612551155216 in words is "six hundred twelve billion, five hundred fifty-one million, one hundred fifty-five thousand, two hundred sixteen".