1516770816 has 120 divisors (see below), whose sum is σ = 4442054232. Its totient is φ = 459571200.

The previous prime is 1516770809. The next prime is 1516770911. The reversal of 1516770816 is 6180776151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181776 + ... + 189936.

Almost surely, 2^1516770816 is an apocalyptic number.

1516770816 is a gapful number since it is divisible by the number (16) 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 1516770816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2221027116).

1516770816 is an abundant number, since it is smaller than the sum of its proper divisors (2925283416).

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

1516770816 is an equidigital number, since it uses as much as digits as its factorization.

1516770816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8204 (or 8177 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 42.

The square root of 1516770816 is about 38945.7419495379. The cubic root of 1516770816 is about 1148.9646171769.

The spelling of 1516770816 in words is "one billion, five hundred sixteen million, seven hundred seventy thousand, eight hundred sixteen".