49911644160 has 720 divisors, whose sum is σ = 208555401600. Its totient is φ = 10786701312.

The previous prime is 49911644137. The next prime is 49911644177. The reversal of 49911644160 is 6144611994.

49911644160 is a `hidden beast` number, since 4 + 99 + 116 + 441 + 6 + 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 (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98057986 + ... + 98058494.

It is an arithmetic number, because the mean of its divisors is an integer number (289660280).

Almost surely, 2^49911644160 is an apocalyptic number.

49911644160 is a gapful number since it is divisible by the number (40) 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 49911644160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104277700800).

49911644160 is an abundant number, since it is smaller than the sum of its proper divisors (158643757440).

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

49911644160 is a wasteful number, since it uses less digits than its factorization.

49911644160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 545 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 49911644160 in words is "forty-nine billion, nine hundred eleven million, six hundred forty-four thousand, one hundred sixty".