5161999392000 has 1296 divisors, whose sum is σ = 20561876165376. Its totient is φ = 1242498048000.

The previous prime is 5161999391999. The next prime is 5161999392029. The reversal of 5161999392000 is 2939991615.

5161999392000 is a `hidden beast` number, since 5 + 161 + 9 + 99 + 392 + 0 + 0 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 5819615557 + ... + 5819616443.

Almost surely, 2^{5161999392000} is an apocalyptic number.

5161999392000 is a gapful number since it is divisible by the number (50) 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 5161999392000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10280938082688).

5161999392000 is an abundant number, since it is smaller than the sum of its proper divisors (15399876773376).

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

5161999392000 is a wasteful number, since it uses less digits than its factorization.

5161999392000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1075 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 54.

The spelling of 5161999392000 in words is "five trillion, one hundred sixty-one billion, nine hundred ninety-nine million, three hundred ninety-two thousand".