124561535456 has 24 divisors (see below), whose sum is σ = 247020535440. Its totient is φ = 61826161408.

The previous prime is 124561535443. The next prime is 124561535473. The reversal of 124561535456 is 654535165421.

It is a happy number.

It is a super-2 number, since 2×124561535456² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124561535456.

It is a congruent number.

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, 14201996 + ... + 14210763.

It is an arithmetic number, because the mean of its divisors is an integer number (10292522310).

Almost surely, 2^124561535456 is an apocalyptic number.

124561535456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

124561535456 is a deficient number, since it is larger than the sum of its proper divisors (122458999984).

124561535456 is a wasteful number, since it uses less digits than its factorization.

124561535456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28412906 (or 28412898 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 47.

The spelling of 124561535456 in words is "one hundred twenty-four billion, five hundred sixty-one million, five hundred thirty-five thousand, four hundred fifty-six".