611660545552 has 40 divisors (see below), whose sum is σ = 1390996385216. Its totient is φ = 255055360896.

The previous prime is 611660545543. The next prime is 611660545553. The reversal of 611660545552 is 255545066116.

It is a happy number.

611660545552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (611660545553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73796598 + ... + 73804885.

Almost surely, 2^611660545552 is an apocalyptic number.

It is an amenable number.

611660545552 is an abundant number, since it is smaller than the sum of its proper divisors (779335839664).

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

611660545552 is a wasteful number, since it uses less digits than its factorization.

611660545552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147601535 (or 147601529 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 611660545552 in words is "six hundred eleven billion, six hundred sixty million, five hundred forty-five thousand, five hundred fifty-two".