6662509475 has 24 divisors (see below), whose sum is σ = 8628540000. Its totient is φ = 5093637120.

The previous prime is 6662509421. The next prime is 6662509489. The reversal of 6662509475 is 5749052666.

It is not a de Polignac number, because 6662509475 - 2⁶ = 6662509411 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 713537 + ... + 722813.

It is an arithmetic number, because the mean of its divisors is an integer number (359522500).

Almost surely, 2^6662509475 is an apocalyptic number.

6662509475 is a deficient number, since it is larger than the sum of its proper divisors (1966030525).

6662509475 is a wasteful number, since it uses less digits than its factorization.

6662509475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10559 (or 10554 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 50.

The square root of 6662509475 is about 81624.1966269807. The cubic root of 6662509475 is about 1881.6807697041.

The spelling of 6662509475 in words is "six billion, six hundred sixty-two million, five hundred nine thousand, four hundred seventy-five".