981073820160 has 480 divisors, whose sum is σ = 3977862400512. Its totient is φ = 218774568960.

The previous prime is 981073820131. The next prime is 981073820171. The reversal of 981073820160 is 61028370189.

981073820160 is a `hidden beast` number, since 9 + 8 + 107 + 382 + 0 + 160 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6538297 + ... + 6686663.

Almost surely, 2^981073820160 is an apocalyptic number.

981073820160 is a gapful number since it is divisible by the number (90) 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 981073820160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988931200256).

981073820160 is an abundant number, since it is smaller than the sum of its proper divisors (2996788580352).

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

981073820160 is a wasteful number, since it uses less digits than its factorization.

981073820160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148444 (or 148425 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 981073820160 in words is "nine hundred eighty-one billion, seventy-three million, eight hundred twenty thousand, one hundred sixty".