15016643797 has 2 divisors, whose sum is σ = 15016643798. Its totient is φ = 15016643796.

The previous prime is 15016643791. The next prime is 15016643801. The reversal of 15016643797 is 79734661051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13659531876 + 1357111921 = 116874^2 + 36839^2 .

It is a cyclic number.

It is not a de Polignac number, because 15016643797 - 2¹¹ = 15016641749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15016643797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15016643791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7508321898 + 7508321899.

It is an arithmetic number, because the mean of its divisors is an integer number (7508321899).

Almost surely, 2^15016643797 is an apocalyptic number.

It is an amenable number.

15016643797 is a deficient number, since it is larger than the sum of its proper divisors (1).

15016643797 is an equidigital number, since it uses as much as digits as its factorization.

15016643797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 952560, while the sum is 49.

The spelling of 15016643797 in words is "fifteen billion, sixteen million, six hundred forty-three thousand, seven hundred ninety-seven".