61020127616 has 64 divisors (see below), whose sum is σ = 146241888000. Its totient is φ = 24775082496.

The previous prime is 61020127601. The next prime is 61020127633. The reversal of 61020127616 is 61672102016.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775156 + ... + 1809203.

It is an arithmetic number, because the mean of its divisors is an integer number (2285029500).

Almost surely, 2^61020127616 is an apocalyptic number.

It is an amenable number.

61020127616 is an abundant number, since it is smaller than the sum of its proper divisors (85221760384).

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

61020127616 is a wasteful number, since it uses less digits than its factorization.

61020127616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3584399 (or 3584387 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The spelling of 61020127616 in words is "sixty-one billion, twenty million, one hundred twenty-seven thousand, six hundred sixteen".