61620421056422 has 8 divisors (see below), whose sum is σ = 92430876507816. Its totient is φ = 30810128887152.

The previous prime is 61620421056407. The next prime is 61620421056461. The reversal of 61620421056422 is 22465012402616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 61620421056422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39872663 + ... + 41389250.

It is an arithmetic number, because the mean of its divisors is an integer number (11553859563477).

Almost surely, 2^{61620421056422} is an apocalyptic number.

61620421056422 is a deficient number, since it is larger than the sum of its proper divisors (30810455451394).

61620421056422 is a wasteful number, since it uses less digits than its factorization.

61620421056422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81641062.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 61620421056422 in words is "sixty-one trillion, six hundred twenty billion, four hundred twenty-one million, fifty-six thousand, four hundred twenty-two".