163828020735 has 12 divisors (see below), whose sum is σ = 283968569352. Its totient is φ = 87374944368.

The previous prime is 163828020721. The next prime is 163828020737. The reversal of 163828020735 is 537020828361.

163828020735 is a `hidden beast` number, since 1 + 638 + 2 + 8 + 0 + 2 + 0 + 7 + 3 + 5 = 666.

It is not a de Polignac number, because 163828020735 - 2⁷ = 163828020607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 3640622683 = 163828020735 / (1 + 6 + 3 + 8 + 2 + 8 + 0 + 2 + 0 + 7 + 3 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163828020737) 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, 1820311297 + ... + 1820311386.

It is an arithmetic number, because the mean of its divisors is an integer number (23664047446).

Almost surely, 2^163828020735 is an apocalyptic number.

163828020735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163828020735 is a deficient number, since it is larger than the sum of its proper divisors (120140548617).

163828020735 is a wasteful number, since it uses less digits than its factorization.

163828020735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640622694 (or 3640622691 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 163828020735 in words is "one hundred sixty-three billion, eight hundred twenty-eight million, twenty thousand, seven hundred thirty-five".