6502402161 has 6 divisors (see below), whose sum is σ = 9392358690. Its totient is φ = 4334934768.

The previous prime is 6502402121. The next prime is 6502402169. The reversal of 6502402161 is 1612042056.

6502402161 is a `hidden beast` number, since 650 + 2 + 4 + 0 + 2 + 1 + 6 + 1 = 666.

6502402161 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4775501025 + 1726901136 = 69105^2 + 41556^2 .

It is not a de Polignac number, because 6502402161 - 2¹³ = 6502393969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6502402169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 361244556 + ... + 361244573.

It is an arithmetic number, because the mean of its divisors is an integer number (1565393115).

Almost surely, 2^6502402161 is an apocalyptic number.

It is an amenable number.

6502402161 is a deficient number, since it is larger than the sum of its proper divisors (2889956529).

6502402161 is a wasteful number, since it uses less digits than its factorization.

6502402161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722489135 (or 722489132 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 6502402161 is about 80637.4736769450. The cubic root of 6502402161 is about 1866.4854499073.

The spelling of 6502402161 in words is "six billion, five hundred two million, four hundred two thousand, one hundred sixty-one".