61012044021016 has 32 divisors (see below), whose sum is σ = 125963693282880. Its totient is φ = 27473562724000.

The previous prime is 61012044021011. The next prime is 61012044021017.

61012044021016 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61012044021011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3239797510 + ... + 3239816341.

It is an arithmetic number, because the mean of its divisors is an integer number (3936365415090).

Almost surely, 2^{61012044021016} is an apocalyptic number.

It is an amenable number.

61012044021016 is an abundant number, since it is smaller than the sum of its proper divisors (64951649261864).

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

61012044021016 is a wasteful number, since it uses less digits than its factorization.

61012044021016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479613975 (or 6479613971 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 61012044021016 in words is "sixty-one trillion, twelve billion, forty-four million, twenty-one thousand, sixteen".