49551966120 has 256 divisors, whose sum is σ = 156392570880. Its totient is φ = 12557886720.

The previous prime is 49551966091. The next prime is 49551966157. The reversal of 49551966120 is 2166915594.

It is a self number, because there is not a number n which added to its sum of digits gives 49551966120.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 296718277 + ... + 296718443.

It is an arithmetic number, because the mean of its divisors is an integer number (610908480).

Almost surely, 2^49551966120 is an apocalyptic number.

49551966120 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 49551966120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78196285440).

49551966120 is an abundant number, since it is smaller than the sum of its proper divisors (106840604760).

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

49551966120 is a wasteful number, since it uses less digits than its factorization.

49551966120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 49551966120 in words is "forty-nine billion, five hundred fifty-one million, nine hundred sixty-six thousand, one hundred twenty".