44140166521 has 8 divisors (see below), whose sum is σ = 50687272800. Its totient is φ = 38015454240.

The previous prime is 44140166519. The next prime is 44140166533. The reversal of 44140166521 is 12566104144.

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 44140166521 - 2¹ = 44140166519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44140166221) 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, 105598276 + ... + 105598693.

It is an arithmetic number, because the mean of its divisors is an integer number (6335909100).

Almost surely, 2^44140166521 is an apocalyptic number.

It is an amenable number.

44140166521 is a deficient number, since it is larger than the sum of its proper divisors (6547106279).

44140166521 is a wasteful number, since it uses less digits than its factorization.

44140166521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211196999.

The product of its (nonzero) digits is 23040, while the sum is 34.

The spelling of 44140166521 in words is "forty-four billion, one hundred forty million, one hundred sixty-six thousand, five hundred twenty-one".