61062667064 has 128 divisors (see below), whose sum is σ = 144822297600. Its totient is φ = 23518218240.

The previous prime is 61062667021. The next prime is 61062667121. The reversal of 61062667064 is 46076626016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14471147 + ... + 14475365.

It is an arithmetic number, because the mean of its divisors is an integer number (1131424200).

Almost surely, 2^61062667064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61062667064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72411148800).

61062667064 is an abundant number, since it is smaller than the sum of its proper divisors (83759630536).

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

61062667064 is a wasteful number, since it uses less digits than its factorization.

61062667064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933 (or 4929 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The spelling of 61062667064 in words is "sixty-one billion, sixty-two million, six hundred sixty-seven thousand, sixty-four".