971650255541 has 8 divisors (see below), whose sum is σ = 1129278747840. Its totient is φ = 818727091488.

The previous prime is 971650255531. The next prime is 971650255549. The reversal of 971650255541 is 145552056179.

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-971650255541 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 971650255541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971650255549) 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, 1176331616 + ... + 1176332441.

It is an arithmetic number, because the mean of its divisors is an integer number (141159843480).

Almost surely, 2^971650255541 is an apocalyptic number.

It is an amenable number.

971650255541 is a deficient number, since it is larger than the sum of its proper divisors (157628492299).

971650255541 is a wasteful number, since it uses less digits than its factorization.

971650255541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352664123.

The product of its (nonzero) digits is 1890000, while the sum is 50.

The spelling of 971650255541 in words is "nine hundred seventy-one billion, six hundred fifty million, two hundred fifty-five thousand, five hundred forty-one".