61551852996712 has 48 divisors (see below), whose sum is σ = 127245019127940. Its totient is φ = 27747883554048.

The previous prime is 61551852996653. The next prime is 61551852996719. The reversal of 61551852996712 is 21769925815516.

61551852996712 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 2 ways, for example, as 45171652812196 + 16380200184516 = 6720986^2 + 4047246^2 .

It is not an unprimeable number, because it can be changed into a prime (61551852996719) 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 in 11 ways as a sum of consecutive naturals, for example, 159852253 + ... + 160236844.

Almost surely, 2^{61551852996712} is an apocalyptic number.

It is an amenable number.

61551852996712 is an abundant number, since it is smaller than the sum of its proper divisors (65693166131228).

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

61551852996712 is a wasteful number, since it uses less digits than its factorization.

61551852996712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320089202 (or 320089155 counting only the distinct ones).

The product of its digits is 81648000, while the sum is 67.

The spelling of 61551852996712 in words is "sixty-one trillion, five hundred fifty-one billion, eight hundred fifty-two million, nine hundred ninety-six thousand, seven hundred twelve".