10815201990998 has 8 divisors (see below), whose sum is σ = 16497765749160. Its totient is φ = 5315946741280.

The previous prime is 10815201990997. The next prime is 10815201991003. The reversal of 10815201990998 is 89909910251801.

10815201990998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10815201990998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10815201990997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45827126963 + ... + 45827127198.

It is an arithmetic number, because the mean of its divisors is an integer number (2062220718645).

Almost surely, 2^{10815201990998} is an apocalyptic number.

10815201990998 is a deficient number, since it is larger than the sum of its proper divisors (5682563758162).

10815201990998 is an equidigital number, since it uses as much as digits as its factorization.

10815201990998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91654254222.

The product of its (nonzero) digits is 4199040, while the sum is 62.

The spelling of 10815201990998 in words is "ten trillion, eight hundred fifteen billion, two hundred one million, nine hundred ninety thousand, nine hundred ninety-eight".