1016547378944 has 72 divisors (see below), whose sum is σ = 2132581073280. Its totient is φ = 482676784128.

The previous prime is 1016547378941. The next prime is 1016547378947. The reversal of 1016547378944 is 4498737456101.

It is an interprime number because it is at equal distance from previous prime (1016547378941) and next prime (1016547378947).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1016547378941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197399 + ... + 1439465.

Almost surely, 2^{1016547378944} 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 1016547378944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066290536640).

1016547378944 is an abundant number, since it is smaller than the sum of its proper divisors (1116033694336).

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

1016547378944 is a wasteful number, since it uses less digits than its factorization.

1016547378944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242245 (or 1242231 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 59.

The spelling of 1016547378944 in words is "one trillion, sixteen billion, five hundred forty-seven million, three hundred seventy-eight thousand, nine hundred forty-four".