50166061549 has 8 divisors (see below), whose sum is σ = 53145159480. Its totient is φ = 47190091776.

The previous prime is 50166061501. The next prime is 50166061571. The reversal of 50166061549 is 94516066105.

It can be written as a sum of positive squares in 4 ways, for example, as 22427159049 + 27738902500 = 149757^2 + 166550^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50166061549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50166061849) 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, 748974 + ... + 813199.

It is an arithmetic number, because the mean of its divisors is an integer number (6643144935).

Almost surely, 2^50166061549 is an apocalyptic number.

It is an amenable number.

50166061549 is a deficient number, since it is larger than the sum of its proper divisors (2979097931).

50166061549 is a wasteful number, since it uses less digits than its factorization.

50166061549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564079.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 50166061549 in words is "fifty billion, one hundred sixty-six million, sixty-one thousand, five hundred forty-nine".