61104083904 has 168 divisors, whose sum is σ = 190720218000. Its totient is φ = 18630549504.

The previous prime is 61104083867. The next prime is 61104083939. The reversal of 61104083904 is 40938040116.

61104083904 is a `hidden beast` number, since 611 + 0 + 4 + 0 + 8 + 39 + 0 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221112 + ... + 413640.

Almost surely, 2^61104083904 is an apocalyptic number.

61104083904 is a gapful number since it is divisible by the number (64) 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 61104083904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95360109000).

61104083904 is an abundant number, since it is smaller than the sum of its proper divisors (129616134096).

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

61104083904 is a wasteful number, since it uses less digits than its factorization.

61104083904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192595 (or 192582 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 61104083904 in words is "sixty-one billion, one hundred four million, eighty-three thousand, nine hundred four".