16121042480 has 40 divisors (see below), whose sum is σ = 39454134000. Its totient is φ = 6109026048.

The previous prime is 16121042471. The next prime is 16121042573. The reversal of 16121042480 is 8424012161.

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, 5301455 + ... + 5304494.

It is an arithmetic number, because the mean of its divisors is an integer number (986353350).

Almost surely, 2^16121042480 is an apocalyptic number.

16121042480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16121042480 is an abundant number, since it is smaller than the sum of its proper divisors (23333091520).

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

16121042480 is a wasteful number, since it uses less digits than its factorization.

16121042480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10605981 (or 10605975 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 16121042480 in words is "sixteen billion, one hundred twenty-one million, forty-two thousand, four hundred eighty".