1551600306216 has 160 divisors (see below), whose sum is σ = 4614389208000. Its totient is φ = 485419405824.

The previous prime is 1551600306197. The next prime is 1551600306239. The reversal of 1551600306216 is 6126030061551.

1551600306216 is a `hidden beast` number, since 1 + 5 + 5 + 1 + 600 + 30 + 6 + 2 + 16 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3758575 + ... + 4150913.

It is an arithmetic number, because the mean of its divisors is an integer number (28839932550).

Almost surely, 2^{1551600306216} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1551600306216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2307194604000).

1551600306216 is an abundant number, since it is smaller than the sum of its proper divisors (3062788901784).

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

1551600306216 is a wasteful number, since it uses less digits than its factorization.

1551600306216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392733 (or 392720 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

Adding to 1551600306216 its reverse (6126030061551), we get a palindrome (7677630367767).

The spelling of 1551600306216 in words is "one trillion, five hundred fifty-one billion, six hundred million, three hundred six thousand, two hundred sixteen".