16121670523388 has 24 divisors (see below), whose sum is σ = 28405228566960. Its totient is φ = 8005986909440.

The previous prime is 16121670523379. The next prime is 16121670523393. The reversal of 16121670523388 is 88332507612161.

It is a congruent number.

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, 11324573 + ... + 12668436.

It is an arithmetic number, because the mean of its divisors is an integer number (1183551190290).

Almost surely, 2^{16121670523388} is an apocalyptic number.

It is an amenable number.

16121670523388 is a deficient number, since it is larger than the sum of its proper divisors (12283558043572).

16121670523388 is a wasteful number, since it uses less digits than its factorization.

16121670523388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23994157 (or 23994155 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 16121670523388 in words is "sixteen trillion, one hundred twenty-one billion, six hundred seventy million, five hundred twenty-three thousand, three hundred eighty-eight".