41125666501 has 4 divisors (see below), whose sum is σ = 43544823372. Its totient is φ = 38706509632.

The previous prime is 41125666451. The next prime is 41125666513. The reversal of 41125666501 is 10566652114.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14041065025 + 27084601476 = 118495^2 + 164574^2 .

It is a cyclic number.

It is not a de Polignac number, because 41125666501 - 2¹⁹ = 41125142213 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 (41125666541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1209578410 + ... + 1209578443.

It is an arithmetic number, because the mean of its divisors is an integer number (10886205843).

Almost surely, 2^41125666501 is an apocalyptic number.

It is an amenable number.

41125666501 is a deficient number, since it is larger than the sum of its proper divisors (2419156871).

41125666501 is a wasteful number, since it uses less digits than its factorization.

41125666501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419156870.

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 41125666501 in words is "forty-one billion, one hundred twenty-five million, six hundred sixty-six thousand, five hundred one".