61655505060 has 48 divisors (see below), whose sum is σ = 178204303872. Its totient is φ = 15911097600.

The previous prime is 61655504993. The next prime is 61655505097. The reversal of 61655505060 is 6050555616.

61655505060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16572201 + ... + 16575920.

It is an arithmetic number, because the mean of its divisors is an integer number (3712589664).

Almost surely, 2^61655505060 is an apocalyptic number.

61655505060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61655505060 is an abundant number, since it is smaller than the sum of its proper divisors (116548798812).

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

61655505060 is a wasteful number, since it uses less digits than its factorization.

61655505060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33148164 (or 33148162 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 61655505060 in words is "sixty-one billion, six hundred fifty-five million, five hundred five thousand, sixty".