61675221888 has 96 divisors (see below), whose sum is σ = 202830741360. Its totient is φ = 17621489664.

The previous prime is 61675221863. The next prime is 61675221919. The reversal of 61675221888 is 88812257616.

61675221888 is a `hidden beast` number, since 616 + 7 + 5 + 2 + 2 + 18 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3816045 + ... + 3832172.

Almost surely, 2^61675221888 is an apocalyptic number.

It is an amenable number.

61675221888 is an abundant number, since it is smaller than the sum of its proper divisors (141155519472).

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

61675221888 is a wasteful number, since it uses less digits than its factorization.

61675221888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7648244 (or 7648229 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The spelling of 61675221888 in words is "sixty-one billion, six hundred seventy-five million, two hundred twenty-one thousand, eight hundred eighty-eight".