6541145602 has 8 divisors (see below), whose sum is σ = 9921962700. Its totient is φ = 3233824704.

The previous prime is 6541145587. The next prime is 6541145621. The reversal of 6541145602 is 2065411456.

It can be written as a sum of positive squares in 2 ways, for example, as 5241615201 + 1299530401 = 72399^2 + 36049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 18373827 + ... + 18374182.

Almost surely, 2^6541145602 is an apocalyptic number.

6541145602 is a deficient number, since it is larger than the sum of its proper divisors (3380817098).

6541145602 is a wasteful number, since it uses less digits than its factorization.

6541145602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36748100.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 6541145602 is about 80877.3491281706. The cubic root of 6541145602 is about 1870.1851553918.

The spelling of 6541145602 in words is "six billion, five hundred forty-one million, one hundred forty-five thousand, six hundred two".