15720616241 has 8 divisors (see below), whose sum is σ = 17216496864. Its totient is φ = 14235857920.

The previous prime is 15720616237. The next prime is 15720616267. The reversal of 15720616241 is 14261602751.

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 15720616241 - 2² = 15720616237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15720616201) 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, 2777615 + ... + 2783268.

It is an arithmetic number, because the mean of its divisors is an integer number (2152062108).

Almost surely, 2^15720616241 is an apocalyptic number.

15720616241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

15720616241 is a deficient number, since it is larger than the sum of its proper divisors (1495880623).

15720616241 is a wasteful number, since it uses less digits than its factorization.

15720616241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561151.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 15720616241 in words is "fifteen billion, seven hundred twenty million, six hundred sixteen thousand, two hundred forty-one".