38820505565502 has 32 divisors (see below), whose sum is σ = 87682016220960. Its totient is φ = 12728034610560.

The previous prime is 38820505565483. The next prime is 38820505565509. The reversal of 38820505565502 is 20556550502883.

38820505565502 is a `hidden beast` number, since 3 + 8 + 8 + 20 + 5 + 0 + 5 + 565 + 50 + 2 = 666.

It is a super-2 number, since 2×38820505565502² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38820505565509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5892605323 + ... + 5892611910.

It is an arithmetic number, because the mean of its divisors is an integer number (2740063006905).

Almost surely, 2^{38820505565502} is an apocalyptic number.

38820505565502 is an abundant number, since it is smaller than the sum of its proper divisors (48861510655458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38820505565502 is a wasteful number, since it uses less digits than its factorization.

38820505565502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11785217305 (or 11785217299 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 54.

The spelling of 38820505565502 in words is "thirty-eight trillion, eight hundred twenty billion, five hundred five million, five hundred sixty-five thousand, five hundred two".