38326665501 has 6 divisors (see below), whose sum is σ = 55360739070. Its totient is φ = 25551110328.

The previous prime is 38326665493. The next prime is 38326665521. The reversal of 38326665501 is 10556662383.

It can be written as a sum of positive squares in only one way, i.e., 28441136025 + 9885529476 = 168645^2 + 99426^2 .

It is not a de Polignac number, because 38326665501 - 2³ = 38326665493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38326665521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2129259186 + ... + 2129259203.

It is an arithmetic number, because the mean of its divisors is an integer number (9226789845).

Almost surely, 2^38326665501 is an apocalyptic number.

It is an amenable number.

38326665501 is a deficient number, since it is larger than the sum of its proper divisors (17034073569).

38326665501 is a wasteful number, since it uses less digits than its factorization.

38326665501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4258518395 (or 4258518392 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 38326665501 in words is "thirty-eight billion, three hundred twenty-six million, six hundred sixty-five thousand, five hundred one".