16181390480 has 40 divisors (see below), whose sum is σ = 37810824000. Its totient is φ = 6440024448.

The previous prime is 16181390473. The next prime is 16181390503. The reversal of 16181390480 is 8409318161.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492290 + ... + 524129.

It is an arithmetic number, because the mean of its divisors is an integer number (945270600).

Almost surely, 2^16181390480 is an apocalyptic number.

16181390480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16181390480 is an abundant number, since it is smaller than the sum of its proper divisors (21629433520).

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

16181390480 is a wasteful number, since it uses less digits than its factorization.

16181390480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016631 (or 1016625 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The spelling of 16181390480 in words is "sixteen billion, one hundred eighty-one million, three hundred ninety thousand, four hundred eighty".