7121516500245 has 16 divisors (see below), whose sum is σ = 13022201600640. Its totient is φ = 3255550400064.

The previous prime is 7121516500243. The next prime is 7121516500337. The reversal of 7121516500245 is 5420056151217.

7121516500245 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7121516500245 - 2¹ = 7121516500243 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7121516500243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33911983230 + ... + 33911983439.

It is an arithmetic number, because the mean of its divisors is an integer number (813887600040).

Almost surely, 2^{7121516500245} is an apocalyptic number.

It is an amenable number.

7121516500245 is a deficient number, since it is larger than the sum of its proper divisors (5900685100395).

7121516500245 is a wasteful number, since it uses less digits than its factorization.

7121516500245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67823966684.

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 7121516500245 in words is "seven trillion, one hundred twenty-one billion, five hundred sixteen million, five hundred thousand, two hundred forty-five".