38015882821661 has 8 divisors (see below), whose sum is σ = 40053880763520. Its totient is φ = 36009979335792.

The previous prime is 38015882821619. The next prime is 38015882821699. The reversal of 38015882821661 is 16612828851083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38015882821661 - 2¹⁰ = 38015882820637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38015882821661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38015882823661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8023611566 + ... + 8023616303.

It is an arithmetic number, because the mean of its divisors is an integer number (5006735095440).

Almost surely, 2^{38015882821661} is an apocalyptic number.

It is an amenable number.

38015882821661 is a deficient number, since it is larger than the sum of its proper divisors (2037997941859).

38015882821661 is a wasteful number, since it uses less digits than its factorization.

38015882821661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16047227995.

The product of its (nonzero) digits is 8847360, while the sum is 59.

The spelling of 38015882821661 in words is "thirty-eight trillion, fifteen billion, eight hundred eighty-two million, eight hundred twenty-one thousand, six hundred sixty-one".