61105552830 has 48 divisors (see below), whose sum is σ = 181570787424. Its totient is φ = 13966983360.

The previous prime is 61105552801. The next prime is 61105552843. The reversal of 61105552830 is 3825550116.

It is a happy number.

61105552830 is a `hidden beast` number, since 61 + 10 + 5 + 552 + 8 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48495841 + ... + 48497100.

It is an arithmetic number, because the mean of its divisors is an integer number (3782724738).

Almost surely, 2^61105552830 is an apocalyptic number.

61105552830 is an abundant number, since it is smaller than the sum of its proper divisors (120465234594).

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

61105552830 is a wasteful number, since it uses less digits than its factorization.

61105552830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96992961 (or 96992958 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 61105552830 in words is "sixty-one billion, one hundred five million, five hundred fifty-two thousand, eight hundred thirty".