611655530020 has 48 divisors (see below), whose sum is σ = 1379189524608. Its totient is φ = 227027064320.

The previous prime is 611655529997. The next prime is 611655530027. The reversal of 611655530020 is 20035556116.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (611655530027) by changing a digit.

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, 12644782 + ... + 12693061.

It is an arithmetic number, because the mean of its divisors is an integer number (28733115096).

Almost surely, 2^611655530020 is an apocalyptic number.

It is an amenable number.

611655530020 is an abundant number, since it is smaller than the sum of its proper divisors (767533994588).

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

611655530020 is a wasteful number, since it uses less digits than its factorization.

611655530020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25337940 (or 25337938 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 611655530020 in words is "six hundred eleven billion, six hundred fifty-five million, five hundred thirty thousand, twenty".