38755516665 has 32 divisors (see below), whose sum is σ = 65300918400. Its totient is φ = 19573194240.

The previous prime is 38755516663. The next prime is 38755516717. The reversal of 38755516665 is 56661555783.

It is a happy number.

It is not a de Polignac number, because 38755516665 - 2¹ = 38755516663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (38755516661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 652405 + ... + 709325.

It is an arithmetic number, because the mean of its divisors is an integer number (2040653700).

Almost surely, 2^38755516665 is an apocalyptic number.

It is an amenable number.

38755516665 is a deficient number, since it is larger than the sum of its proper divisors (26545401735).

38755516665 is a wasteful number, since it uses less digits than its factorization.

38755516665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59337.

The product of its digits is 22680000, while the sum is 57.

The spelling of 38755516665 in words is "thirty-eight billion, seven hundred fifty-five million, five hundred sixteen thousand, six hundred sixty-five".