19900115550315 has 192 divisors, whose sum is σ = 46580719610880. Its totient is φ = 7589880161280.

The previous prime is 19900115550283. The next prime is 19900115550349. The reversal of 19900115550315 is 51305551100991.

19900115550315 is a `hidden beast` number, since 1 + 9 + 90 + 0 + 1 + 1 + 5 + 550 + 3 + 1 + 5 = 666.

It is not a de Polignac number, because 19900115550315 - 2⁵ = 19900115550283 is a prime.

It is a super-4 number, since 4×19900115550315⁴ (a number of 54 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 6515956 + ... + 9069614.

It is an arithmetic number, because the mean of its divisors is an integer number (242607914640).

Almost surely, 2^{19900115550315} is an apocalyptic number.

19900115550315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

19900115550315 is an abundant number, since it is smaller than the sum of its proper divisors (26680604060565).

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

19900115550315 is a wasteful number, since it uses less digits than its factorization.

19900115550315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553874 (or 2553871 counting only the distinct ones).

The product of its (nonzero) digits is 151875, while the sum is 45.

The spelling of 19900115550315 in words is "nineteen trillion, nine hundred billion, one hundred fifteen million, five hundred fifty thousand, three hundred fifteen".