820199915151 has 16 divisors (see below), whose sum is σ = 1112024613888. Its totient is φ = 537629551200.

The previous prime is 820199915147. The next prime is 820199915179. The reversal of 820199915151 is 151519991028.

It is a happy number.

It is not a de Polignac number, because 820199915151 - 2² = 820199915147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 820199915094 and 820199915103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (820199915251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5168020 + ... + 5324361.

It is an arithmetic number, because the mean of its divisors is an integer number (69501538368).

Almost surely, 2^820199915151 is an apocalyptic number.

820199915151 is a deficient number, since it is larger than the sum of its proper divisors (291824698737).

820199915151 is a wasteful number, since it uses less digits than its factorization.

820199915151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10492822.

The product of its (nonzero) digits is 291600, while the sum is 51.

The spelling of 820199915151 in words is "eight hundred twenty billion, one hundred ninety-nine million, nine hundred fifteen thousand, one hundred fifty-one".