61621270716100 has 36 divisors (see below), whose sum is σ = 136563224644224. Its totient is φ = 24124071938080.

The previous prime is 61621270716097. The next prime is 61621270716163. The reversal of 61621270716100 is 161707212616.

61621270716100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6555449632 + ... + 6555459031.

It is an arithmetic number, because the mean of its divisors is an integer number (3793422906784).

Almost surely, 2^{61621270716100} is an apocalyptic number.

It is an amenable number.

61621270716100 is an abundant number, since it is smaller than the sum of its proper divisors (74941953928124).

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

61621270716100 is a wasteful number, since it uses less digits than its factorization.

61621270716100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13110908724 (or 13110908717 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

Adding to 61621270716100 its reverse (161707212616), we get a palindrome (61782977928716).

The spelling of 61621270716100 in words is "sixty-one trillion, six hundred twenty-one billion, two hundred seventy million, seven hundred sixteen thousand, one hundred".