61356556230 has 64 divisors (see below), whose sum is σ = 157145702400. Its totient is φ = 15278022144.

The previous prime is 61356556199. The next prime is 61356556231. The reversal of 61356556230 is 3265565316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61356556231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 408880 + ... + 538419.

It is an arithmetic number, because the mean of its divisors is an integer number (2455401600).

Almost surely, 2^61356556230 is an apocalyptic number.

61356556230 is an abundant number, since it is smaller than the sum of its proper divisors (95789146170).

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

61356556230 is a wasteful number, since it uses less digits than its factorization.

61356556230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947453.

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 61356556230 in words is "sixty-one billion, three hundred fifty-six million, five hundred fifty-six thousand, two hundred thirty".