6662123542 has 32 divisors (see below), whose sum is σ = 10499116320. Its totient is φ = 3166356480.

The previous prime is 6662123537. The next prime is 6662123549. The reversal of 6662123542 is 2453212666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6662123549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105317 + ... + 1111327.

It is an arithmetic number, because the mean of its divisors is an integer number (328097385).

Almost surely, 2^6662123542 is an apocalyptic number.

6662123542 is a deficient number, since it is larger than the sum of its proper divisors (3836992778).

6662123542 is a wasteful number, since it uses less digits than its factorization.

6662123542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336.

The product of its digits is 103680, while the sum is 37.

The square root of 6662123542 is about 81621.8325082205. The cubic root of 6662123542 is about 1881.6444362109.

The spelling of 6662123542 in words is "six billion, six hundred sixty-two million, one hundred twenty-three thousand, five hundred forty-two".