6416651501 has 4 divisors (see below), whose sum is σ = 6910240092. Its totient is φ = 5923062912.

The previous prime is 6416651491. The next prime is 6416651587. The reversal of 6416651501 is 1051566146.

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 781146601 + 5635504900 = 27949^2 + 75070^2 .

It is not a de Polignac number, because 6416651501 - 2¹⁴ = 6416635117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6416651201) 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, 246794276 + ... + 246794301.

It is an arithmetic number, because the mean of its divisors is an integer number (1727560023).

Almost surely, 2^6416651501 is an apocalyptic number.

It is an amenable number.

6416651501 is a deficient number, since it is larger than the sum of its proper divisors (493588591).

6416651501 is a wasteful number, since it uses less digits than its factorization.

6416651501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493588590.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 6416651501 is about 80104.0042756915. The cubic root of 6416651501 is about 1858.2443352652.

The spelling of 6416651501 in words is "six billion, four hundred sixteen million, six hundred fifty-one thousand, five hundred one".