361908666540 has 144 divisors (see below), whose sum is σ = 1115252506368. Its totient is φ = 94982654592.

The previous prime is 361908666523. The next prime is 361908666541. The reversal of 361908666540 is 45666809163.

It is not an unprimeable number, because it can be changed into a prime (361908666541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3883167 + ... + 3975273.

It is an arithmetic number, because the mean of its divisors is an integer number (7744809072).

Almost surely, 2^361908666540 is an apocalyptic number.

361908666540 is a gapful number since it is divisible by the number (30) 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 361908666540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557626253184).

361908666540 is an abundant number, since it is smaller than the sum of its proper divisors (753343839828).

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

361908666540 is a wasteful number, since it uses less digits than its factorization.

361908666540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92468 (or 92463 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The spelling of 361908666540 in words is "three hundred sixty-one billion, nine hundred eight million, six hundred sixty-six thousand, five hundred forty".