124551666 has 12 divisors (see below), whose sum is σ = 269861982. Its totient is φ = 41517216.

The previous prime is 124551649. The next prime is 124551667. The reversal of 124551666 is 666155421.

It can be written as a sum of positive squares in only one way, i.e., 103124025 + 21427641 = 10155^2 + 4629^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 124551666.

It is not an unprimeable number, because it can be changed into a prime (124551667) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3459751 + ... + 3459786.

Almost surely, 2^124551666 is an apocalyptic number.

124551666 is an abundant number, since it is smaller than the sum of its proper divisors (145310316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124551666 is a wasteful number, since it uses less digits than its factorization.

124551666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919545 (or 6919542 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 124551666 is about 11160.2717708844. The cubic root of 124551666 is about 499.4015052272.

The spelling of 124551666 in words is "one hundred twenty-four million, five hundred fifty-one thousand, six hundred sixty-six".