61335454551172 has 6 divisors (see below), whose sum is σ = 107337045464558. Its totient is φ = 30667727275584.

The previous prime is 61335454551083. The next prime is 61335454551179. The reversal of 61335454551172 is 27115545453316.

61335454551172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 60143654394756 + 1191800156416 = 7755234^2 + 1091696^2 .

It is not an unprimeable number, because it can be changed into a prime (61335454551179) by changing a digit.

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 as a sum of consecutive naturals, namely, 7666931818893 + ... + 7666931818900.

Almost surely, 2^{61335454551172} is an apocalyptic number.

It is an amenable number.

61335454551172 is a deficient number, since it is larger than the sum of its proper divisors (46001590913386).

61335454551172 is a wasteful number, since it uses less digits than its factorization.

61335454551172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15333863637797 (or 15333863637795 counting only the distinct ones).

The product of its digits is 7560000, while the sum is 52.

The spelling of 61335454551172 in words is "sixty-one trillion, three hundred thirty-five billion, four hundred fifty-four million, five hundred fifty-one thousand, one hundred seventy-two".