6502454265161 has 4 divisors (see below), whose sum is σ = 6502459785924. Its totient is φ = 6502448744400.

The previous prime is 6502454265023. The next prime is 6502454265173. The reversal of 6502454265161 is 1615624542056.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4692942342400 + 1809511922761 = 2166320^2 + 1345181^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6502454265161 is a prime.

It is a super-2 number, since 2×6502454265161² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6502454265191) 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, 205310 + ... + 3612071.

It is an arithmetic number, because the mean of its divisors is an integer number (1625614946481).

Almost surely, 2^{6502454265161} is an apocalyptic number.

It is an amenable number.

6502454265161 is a deficient number, since it is larger than the sum of its proper divisors (5520763).

6502454265161 is a wasteful number, since it uses less digits than its factorization.

6502454265161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520762.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 6502454265161 in words is "six trillion, five hundred two billion, four hundred fifty-four million, two hundred sixty-five thousand, one hundred sixty-one".