16120331452 has 24 divisors (see below), whose sum is σ = 29248934400. Its totient is φ = 7765784880.

The previous prime is 16120331449. The next prime is 16120331459. The reversal of 16120331452 is 25413302161.

It is a super-3 number, since 3×16120331452³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 16120331452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16120331459) 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, 258202 + ... + 314497.

It is an arithmetic number, because the mean of its divisors is an integer number (1218705600).

Almost surely, 2^16120331452 is an apocalyptic number.

It is an amenable number.

16120331452 is a deficient number, since it is larger than the sum of its proper divisors (13128602948).

16120331452 is a wasteful number, since it uses less digits than its factorization.

16120331452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572961 (or 572959 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 16120331452 in words is "sixteen billion, one hundred twenty million, three hundred thirty-one thousand, four hundred fifty-two".