30556421125016 has 16 divisors (see below), whose sum is σ = 57298365821040. Its totient is φ = 15276856906080.

The previous prime is 30556421124989. The next prime is 30556421125019. The reversal of 30556421125016 is 61052112465503.

It is a super-2 number, since 2×30556421125016² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30556421125019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169111115 + ... + 169291706.

It is an arithmetic number, because the mean of its divisors is an integer number (3581147863815).

Almost surely, 2^{30556421125016} is an apocalyptic number.

It is an amenable number.

30556421125016 is a deficient number, since it is larger than the sum of its proper divisors (26741944696024).

30556421125016 is a wasteful number, since it uses less digits than its factorization.

30556421125016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338414114 (or 338414110 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 30556421125016 in words is "thirty trillion, five hundred fifty-six billion, four hundred twenty-one million, one hundred twenty-five thousand, sixteen".