331155350540 has 144 divisors (see below), whose sum is σ = 814470515712. Its totient is φ = 112769040384.

The previous prime is 331155350531. The next prime is 331155350549. The reversal of 331155350540 is 45053551133.

It is an interprime number because it is at equal distance from previous prime (331155350531) and next prime (331155350549).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 331155350540.

It is not an unprimeable number, because it can be changed into a prime (331155350549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96460664 + ... + 96464096.

It is an arithmetic number, because the mean of its divisors is an integer number (5656045248).

Almost surely, 2^331155350540 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 331155350540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407235257856).

331155350540 is an abundant number, since it is smaller than the sum of its proper divisors (483315165172).

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

331155350540 is a wasteful number, since it uses less digits than its factorization.

331155350540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4096 (or 4087 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 35.

The spelling of 331155350540 in words is "three hundred thirty-one billion, one hundred fifty-five million, three hundred fifty thousand, five hundred forty".