611221104552 has 32 divisors (see below), whose sum is σ = 1528099372800. Its totient is φ = 203734153344.

The previous prime is 611221104541. The next prime is 611221104623. The reversal of 611221104552 is 255401122116.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 451849 + ... + 1194407.

It is an arithmetic number, because the mean of its divisors is an integer number (47753105400).

Almost surely, 2^611221104552 is an apocalyptic number.

It is an amenable number.

611221104552 is an abundant number, since it is smaller than the sum of its proper divisors (916878268248).

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

611221104552 is a wasteful number, since it uses less digits than its factorization.

611221104552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776865 (or 776861 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

Adding to 611221104552 its reverse (255401122116), we get a palindrome (866622226668).

The spelling of 611221104552 in words is "six hundred eleven billion, two hundred twenty-one million, one hundred four thousand, five hundred fifty-two".