61426566236672 has 160 divisors (see below), whose sum is σ = 155138799564672. Its totient is φ = 23643845443584.

The previous prime is 61426566236671. The next prime is 61426566236687. The reversal of 61426566236672 is 27663266562416.

61426566236672 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (61426566236671) 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 15 ways as a sum of consecutive naturals, for example, 16092218 + ... + 19540025.

Almost surely, 2^{61426566236672} is an apocalyptic number.

It is an amenable number.

61426566236672 is an abundant number, since it is smaller than the sum of its proper divisors (93712233328000).

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

61426566236672 is a wasteful number, since it uses less digits than its factorization.

61426566236672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35632318 (or 35632302 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 62.

The spelling of 61426566236672 in words is "sixty-one trillion, four hundred twenty-six billion, five hundred sixty-six million, two hundred thirty-six thousand, six hundred seventy-two".