190321137910556 has 24 divisors (see below), whose sum is σ = 342512807742000. Its totient is φ = 92496580440704.

The previous prime is 190321137910517. The next prime is 190321137910621. The reversal of 190321137910556 is 655019731123091.

It is a junction number, because it is equal to n+sod(n) for n = 190321137910498 and 190321137910507.

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, 4530571691 + ... + 4530613698.

It is an arithmetic number, because the mean of its divisors is an integer number (14271366989250).

Almost surely, 2^{190321137910556} is an apocalyptic number.

It is an amenable number.

190321137910556 is a deficient number, since it is larger than the sum of its proper divisors (152191669831444).

190321137910556 is a wasteful number, since it uses less digits than its factorization.

190321137910556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9061185541 (or 9061185539 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 53.

The spelling of 190321137910556 in words is "one hundred ninety trillion, three hundred twenty-one billion, one hundred thirty-seven million, nine hundred ten thousand, five hundred fifty-six".