6163406465 has 4 divisors (see below), whose sum is σ = 7396087764. Its totient is φ = 4930725168.

The previous prime is 6163406443. The next prime is 6163406477. The reversal of 6163406465 is 5646043616.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2494802704 + 3668603761 = 49948^2 + 60569^2 .

It is a cyclic number.

It is not a de Polignac number, because 6163406465 - 2³² = 1868439169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616340642 + ... + 616340651.

It is an arithmetic number, because the mean of its divisors is an integer number (1849021941).

Almost surely, 2^6163406465 is an apocalyptic number.

It is an amenable number.

6163406465 is a deficient number, since it is larger than the sum of its proper divisors (1232681299).

6163406465 is a wasteful number, since it uses less digits than its factorization.

6163406465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232681298.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 6163406465 is about 78507.3656735468. The cubic root of 6163406465 is about 1833.4691343115.

The spelling of 6163406465 in words is "six billion, one hundred sixty-three million, four hundred six thousand, four hundred sixty-five".