98157516601 has 3 divisors (see below), whose sum is σ = 98157829903. Its totient is φ = 98157203300.

The previous prime is 98157516581. The next prime is 98157516607. The reversal of 98157516601 is 10661575189.

It is a happy number.

The square root of 98157516601 is 313301.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10661575189 = 409 ⋅26067421.

It can be written as a sum of positive squares in only one way, i.e., 10150361001 + 88007155600 = 100749^2 + 296660^2 .

It is not a de Polignac number, because 98157516601 - 2⁷ = 98157516473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98157516607) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 156651 + ... + 469951.

Almost surely, 2^98157516601 is an apocalyptic number.

98157516601 is the 313301-st square number.

98157516601 is the 156651-st centered octagonal number.

It is an amenable number.

98157516601 is a deficient number, since it is larger than the sum of its proper divisors (313302).

98157516601 is an frugal number, since it uses more digits than its factorization.

98157516601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626602 (or 313301 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 49.

Multiplying 98157516601 by its sum of digits (49), we get a square (4809718313449 = 2193107²).

The spelling of 98157516601 in words is "ninety-eight billion, one hundred fifty-seven million, five hundred sixteen thousand, six hundred one".