1650881501216 has 96 divisors (see below), whose sum is σ = 3440748326400. Its totient is φ = 777548298240.

The previous prime is 1650881501189. The next prime is 1650881501267. The reversal of 1650881501216 is 6121051880561.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81826106 + ... + 81846278.

It is an arithmetic number, because the mean of its divisors is an integer number (35841128400).

Almost surely, 2^{1650881501216} is an apocalyptic number.

1650881501216 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 1650881501216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720374163200).

1650881501216 is an abundant number, since it is smaller than the sum of its proper divisors (1789866825184).

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

1650881501216 is a wasteful number, since it uses less digits than its factorization.

1650881501216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20962 (or 20954 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 1650881501216 in words is "one trillion, six hundred fifty billion, eight hundred eighty-one million, five hundred one thousand, two hundred sixteen".