124920591066 has 64 divisors (see below), whose sum is σ = 286627507200. Its totient is φ = 40286937600.

The previous prime is 124920591053. The next prime is 124920591079. The reversal of 124920591066 is 660195029421.

124920591066 is a `hidden beast` number, since 1 + 2 + 492 + 0 + 59 + 106 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (124920591053) and next prime (124920591079).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9838450 + ... + 9851138.

It is an arithmetic number, because the mean of its divisors is an integer number (4478554800).

Almost surely, 2^124920591066 is an apocalyptic number.

124920591066 is an abundant number, since it is smaller than the sum of its proper divisors (161706916134).

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

124920591066 is a wasteful number, since it uses less digits than its factorization.

124920591066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18612 (or 18606 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 124920591066 in words is "one hundred twenty-four billion, nine hundred twenty million, five hundred ninety-one thousand, sixty-six".