15198498049806 has 64 divisors (see below), whose sum is σ = 34277918169600. Its totient is φ = 4990809774528.

The previous prime is 15198498049789. The next prime is 15198498049807. The reversal of 15198498049806 is 60894089489151.

15198498049806 is a `hidden beast` number, since 1 + 5 + 1 + 98 + 49 + 8 + 0 + 498 + 0 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15198498049807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1009645 + ... + 5605031.

It is an arithmetic number, because the mean of its divisors is an integer number (535592471400).

Almost surely, 2^{15198498049806} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15198498049806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17138959084800).

15198498049806 is an abundant number, since it is smaller than the sum of its proper divisors (19079420119794).

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

15198498049806 is a wasteful number, since it uses less digits than its factorization.

15198498049806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596310 (or 4596304 counting only the distinct ones).

The product of its (nonzero) digits is 179159040, while the sum is 72.

The spelling of 15198498049806 in words is "fifteen trillion, one hundred ninety-eight billion, four hundred ninety-eight million, forty-nine thousand, eight hundred six".