501696685803 has 4 divisors (see below), whose sum is σ = 668928914408. Its totient is φ = 334464457200.

The previous prime is 501696685781. The next prime is 501696685859. The reversal of 501696685803 is 308586696105.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 501696685803 - 2¹³ = 501696677611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (501696685883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83616114298 + ... + 83616114303.

It is an arithmetic number, because the mean of its divisors is an integer number (167232228602).

Almost surely, 2^501696685803 is an apocalyptic number.

501696685803 is a deficient number, since it is larger than the sum of its proper divisors (167232228605).

501696685803 is a wasteful number, since it uses less digits than its factorization.

501696685803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167232228604.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 501696685803 in words is "five hundred one billion, six hundred ninety-six million, six hundred eighty-five thousand, eight hundred three".