16201899363 has 18 divisors (see below), whose sum is σ = 23396230116. Its totient is φ = 9968635872.

The previous prime is 16201899359. The next prime is 16201899367. The reversal of 16201899363 is 36399810261.

It is an interprime number because it is at equal distance from previous prime (16201899359) and next prime (16201899367).

It is not a de Polignac number, because 16201899363 - 2² = 16201899359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16201899367) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2863245 + ... + 2868897.

It is an arithmetic number, because the mean of its divisors is an integer number (1299790562).

Almost surely, 2^16201899363 is an apocalyptic number.

16201899363 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16201899363 is a deficient number, since it is larger than the sum of its proper divisors (7194330753).

16201899363 is an frugal number, since it uses more digits than its factorization.

16201899363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11335 (or 5669 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

Multiplying 16201899363 by its sum of digits (48), we get a square (777691169424 = 881868²).

The spelling of 16201899363 in words is "sixteen billion, two hundred one million, eight hundred ninety-nine thousand, three hundred sixty-three".