1516720222332 has 144 divisors (see below), whose sum is σ = 4420918075392. Its totient is φ = 429471020160.

The previous prime is 1516720222321. The next prime is 1516720222349. The reversal of 1516720222332 is 2332220276151.

1516720222332 is a `hidden beast` number, since 1 + 516 + 72 + 0 + 22 + 23 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30090583 + ... + 30140945.

It is an arithmetic number, because the mean of its divisors is an integer number (30700819968).

Almost surely, 2^{1516720222332} is an apocalyptic number.

1516720222332 is a gapful number since it is divisible by the number (12) 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 1516720222332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2210459037696).

1516720222332 is an abundant number, since it is smaller than the sum of its proper divisors (2904197853060).

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

1516720222332 is a wasteful number, since it uses less digits than its factorization.

1516720222332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51448 (or 51443 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 1516720222332 its reverse (2332220276151), we get a palindrome (3848940498483).

The spelling of 1516720222332 in words is "one trillion, five hundred sixteen billion, seven hundred twenty million, two hundred twenty-two thousand, three hundred thirty-two".