111412557651450 has 192 divisors, whose sum is σ = 319236740790912. Its totient is φ = 25413607833600.

The previous prime is 111412557651431. The next prime is 111412557651509. The reversal of 111412557651450 is 54156755214111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111412557651450.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105870064 + ... + 106917236.

It is an arithmetic number, because the mean of its divisors is an integer number (1662691358286).

Almost surely, 2^{111412557651450} is an apocalyptic number.

111412557651450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111412557651450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159618370395456).

111412557651450 is an abundant number, since it is smaller than the sum of its proper divisors (207824183139462).

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

111412557651450 is a wasteful number, since it uses less digits than its factorization.

111412557651450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051009 (or 1051004 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 48.

The spelling of 111412557651450 in words is "one hundred eleven trillion, four hundred twelve billion, five hundred fifty-seven million, six hundred fifty-one thousand, four hundred fifty".