198101547396 has 135 divisors (see below), whose sum is σ = 526196076021. Its totient is φ = 64989677376.

The previous prime is 198101547361. The next prime is 198101547409. The reversal of 198101547396 is 693745101891.

The square root of 198101547396 is 445086.

It is a perfect power (a square), and thus also a powerful number.

198101547396 is a `hidden beast` number, since 1 + 9 + 8 + 1 + 0 + 1 + 547 + 3 + 96 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1263802500 + 196837744896 = 35550^2 + 443664^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 632912136 + ... + 632912448.

Almost surely, 2^198101547396 is an apocalyptic number.

198101547396 is the 445086-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198101547396

198101547396 is an abundant number, since it is smaller than the sum of its proper divisors (328094528625).

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

198101547396 is an frugal number, since it uses more digits than its factorization.

198101547396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 198101547396 in words is "one hundred ninety-eight billion, one hundred one million, five hundred forty-seven thousand, three hundred ninety-six".