124771836416 has 20 divisors (see below), whose sum is σ = 249299978862. Its totient is φ = 62385917952.

The previous prime is 124771836391. The next prime is 124771836433. The reversal of 124771836416 is 614638177421.

It can be written as a sum of positive squares in only one way, i.e., 116351938816 + 8419897600 = 341104^2 + 91760^2 .

It is a super-2 number, since 2×124771836416² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121846985 + ... + 121848008.

Almost surely, 2^124771836416 is an apocalyptic number.

124771836416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

124771836416 is a deficient number, since it is larger than the sum of its proper divisors (124528142446).

124771836416 is an frugal number, since it uses more digits than its factorization.

124771836416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243695011 (or 243694995 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The spelling of 124771836416 in words is "one hundred twenty-four billion, seven hundred seventy-one million, eight hundred thirty-six thousand, four hundred sixteen".