18203699151 has 24 divisors (see below), whose sum is σ = 30194336640. Its totient is φ = 10451883600.

The previous prime is 18203699147. The next prime is 18203699167. The reversal of 18203699151 is 15199630281.

It is not a de Polignac number, because 18203699151 - 2² = 18203699147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18203699097 and 18203699106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18203699551) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4836955 + ... + 4840716.

It is an arithmetic number, because the mean of its divisors is an integer number (1258097360).

Almost surely, 2^18203699151 is an apocalyptic number.

18203699151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18203699151 is a deficient number, since it is larger than the sum of its proper divisors (11990637489).

18203699151 is a wasteful number, since it uses less digits than its factorization.

18203699151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9677707 (or 9677704 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 18203699151 in words is "eighteen billion, two hundred three million, six hundred ninety-nine thousand, one hundred fifty-one".