1642516803 has 12 divisors (see below), whose sum is σ = 2449057728. Its totient is φ = 1059688080.

The previous prime is 1642516787. The next prime is 1642516861. The reversal of 1642516803 is 3086152461.

It is a happy number.

1642516803 is a `hidden beast` number, since 1 + 64 + 2 + 516 + 80 + 3 = 666.

It is not a de Polignac number, because 1642516803 - 2⁴ = 1642516787 is a prime.

It is a super-2 number, since 2×1642516803² = 5395722896274681618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1642516873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2943300 + ... + 2943857.

It is an arithmetic number, because the mean of its divisors is an integer number (204088144).

Almost surely, 2^1642516803 is an apocalyptic number.

1642516803 is a deficient number, since it is larger than the sum of its proper divisors (806540925).

1642516803 is a wasteful number, since it uses less digits than its factorization.

1642516803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887194 (or 5887191 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1642516803 is about 40527.9755600992. The cubic root of 1642516803 is about 1179.8766516186.

The spelling of 1642516803 in words is "one billion, six hundred forty-two million, five hundred sixteen thousand, eight hundred three".