1499221785600 has 2112 divisors, whose sum is σ = 7272233118720. Its totient is φ = 293024563200.

The previous prime is 1499221785577. The next prime is 1499221785613. The reversal of 1499221785600 is 65871229941.

It is a happy number.

1499221785600 is a `hidden beast` number, since 1 + 4 + 9 + 9 + 2 + 2 + 1 + 78 + 560 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2112).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 904779972 + ... + 904781628.

Almost surely, 2^{1499221785600} is an apocalyptic number.

1499221785600 is a gapful number since it is divisible by the number (10) 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 1499221785600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3636116559360).

1499221785600 is an abundant number, since it is smaller than the sum of its proper divisors (5773011333120).

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

1499221785600 is a wasteful number, since it uses less digits than its factorization.

1499221785600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 1499221785600 in words is "one trillion, four hundred ninety-nine billion, two hundred twenty-one million, seven hundred eighty-five thousand, six hundred".