61622104320 has 720 divisors, whose sum is σ = 253861267968. Its totient is φ = 13981040640.

The previous prime is 61622104301. The next prime is 61622104337. The reversal of 61622104320 is 2340122616.

61622104320 is a `hidden beast` number, since 6 + 1 + 6 + 221 + 0 + 432 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 142974505 + ... + 142974935.

Almost surely, 2^61622104320 is an apocalyptic number.

61622104320 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 61622104320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126930633984).

61622104320 is an abundant number, since it is smaller than the sum of its proper divisors (192239163648).

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

61622104320 is a wasteful number, since it uses less digits than its factorization.

61622104320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 61622104320 its reverse (2340122616), we get a palindrome (63962226936).

The spelling of 61622104320 in words is "sixty-one billion, six hundred twenty-two million, one hundred four thousand, three hundred twenty".