198070392601 has 9 divisors (see below), whose sum is σ = 198703937791. Its totient is φ = 197438865232.

The previous prime is 198070392599. The next prime is 198070392617. The reversal of 198070392601 is 106293070891.

It is a happy number.

The square root of 198070392601 is 445051.

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

It can be written as a sum of positive squares in only one way, i.e., 82486712025 + 115583680576 = 287205^2 + 339976^2 .

It is not a de Polignac number, because 198070392601 - 2¹ = 198070392599 is a prime.

It is a super-2 number, since 2×198070392601² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198070392661) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 207838341 + ... + 207839293.

Almost surely, 2^198070392601 is an apocalyptic number.

198070392601 is the 445051-st square number.

198070392601 is the 222526-th centered octagonal number.

It is an amenable number.

198070392601 is a deficient number, since it is larger than the sum of its proper divisors (633545190).

198070392601 is an frugal number, since it uses more digits than its factorization.

198070392601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 46.

The spelling of 198070392601 in words is "one hundred ninety-eight billion, seventy million, three hundred ninety-two thousand, six hundred one".