61622333640 has 192 divisors, whose sum is σ = 229884595200. Its totient is φ = 14023466496.

The previous prime is 61622333639. The next prime is 61622333659. The reversal of 61622333640 is 4633322616.

61622333640 is a `hidden beast` number, since 6 + 1 + 6 + 2 + 2 + 3 + 3 + 3 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 61622333595 and 61622333604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 523689 + ... + 630471.

It is an arithmetic number, because the mean of its divisors is an integer number (1197315600).

Almost surely, 2^61622333640 is an apocalyptic number.

61622333640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61622333640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114942297600).

61622333640 is an abundant number, since it is smaller than the sum of its proper divisors (168262261560).

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

61622333640 is a wasteful number, since it uses less digits than its factorization.

61622333640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107036 (or 107029 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 61622333640 in words is "sixty-one billion, six hundred twenty-two million, three hundred thirty-three thousand, six hundred forty".