981257800160 has 48 divisors (see below), whose sum is σ = 2528968971312. Its totient is φ = 356821017600.

The previous prime is 981257800147. The next prime is 981257800169. The reversal of 981257800160 is 61008752189.

981257800160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981257800169) 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, 278764661 + ... + 278768180.

It is an arithmetic number, because the mean of its divisors is an integer number (52686853569).

Almost surely, 2^981257800160 is an apocalyptic number.

It is an amenable number.

981257800160 is an abundant number, since it is smaller than the sum of its proper divisors (1547711171152).

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

981257800160 is a wasteful number, since it uses less digits than its factorization.

981257800160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557532867 (or 557532859 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 47.

The spelling of 981257800160 in words is "nine hundred eighty-one billion, two hundred fifty-seven million, eight hundred thousand, one hundred sixty".