199524940401 has 64 divisors (see below), whose sum is σ = 280712355840. Its totient is φ = 125934581760.

The previous prime is 199524940379. The next prime is 199524940423. The reversal of 199524940401 is 104049425991.

It is an interprime number because it is at equal distance from previous prime (199524940379) and next prime (199524940423).

It is not a de Polignac number, because 199524940401 - 2¹⁷ = 199524809329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199524940481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 391993735 + ... + 391994243.

It is an arithmetic number, because the mean of its divisors is an integer number (4386130560).

Almost surely, 2^199524940401 is an apocalyptic number.

It is an amenable number.

199524940401 is a deficient number, since it is larger than the sum of its proper divisors (81187415439).

199524940401 is a wasteful number, since it uses less digits than its factorization.

199524940401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 199524940401 in words is "one hundred ninety-nine billion, five hundred twenty-four million, nine hundred forty thousand, four hundred one".