38186154440660 has 96 divisors (see below), whose sum is σ = 84918755376000. Its totient is φ = 14383622684160.

The previous prime is 38186154440659. The next prime is 38186154440669. The reversal of 38186154440660 is 6604445168183.

It is a happy number.

It is a super-2 number, since 2×38186154440660² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38186154440596 and 38186154440605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38186154440669) 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, 298987415 + ... + 299115105.

It is an arithmetic number, because the mean of its divisors is an integer number (884570368500).

Almost surely, 2^{38186154440660} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38186154440660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42459377688000).

38186154440660 is an abundant number, since it is smaller than the sum of its proper divisors (46732600935340).

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

38186154440660 is a wasteful number, since it uses less digits than its factorization.

38186154440660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132441 (or 132439 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 38186154440660 in words is "thirty-eight trillion, one hundred eighty-six billion, one hundred fifty-four million, four hundred forty thousand, six hundred sixty".