61651422054 has 16 divisors (see below), whose sum is σ = 137003160240. Its totient is φ = 20550474000.

The previous prime is 61651422047. The next prime is 61651422073. The reversal of 61651422054 is 45022415616.

61651422054 is a `hidden beast` number, since 616 + 5 + 14 + 2 + 20 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570846447 + ... + 570846554.

It is an arithmetic number, because the mean of its divisors is an integer number (8562697515).

Almost surely, 2^61651422054 is an apocalyptic number.

61651422054 is an abundant number, since it is smaller than the sum of its proper divisors (75351738186).

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

61651422054 is a wasteful number, since it uses less digits than its factorization.

61651422054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141693012 (or 1141693006 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 61651422054 in words is "sixty-one billion, six hundred fifty-one million, four hundred twenty-two thousand, fifty-four".