64157124123 has 12 divisors (see below), whose sum is σ = 92758758768. Its totient is φ = 42731097360.

The previous prime is 64157124103. The next prime is 64157124127. The reversal of 64157124123 is 32142175146.

64157124123 is a `hidden beast` number, since 6 + 41 + 571 + 2 + 41 + 2 + 3 = 666.

It is not a de Polignac number, because 64157124123 - 2⁵ = 64157124091 is a prime.

It is a super-2 number, since 2×64157124123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64157124127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3349815 + ... + 3368912.

It is an arithmetic number, because the mean of its divisors is an integer number (7729896564).

Almost surely, 2^64157124123 is an apocalyptic number.

64157124123 is a deficient number, since it is larger than the sum of its proper divisors (28601634645).

64157124123 is a wasteful number, since it uses less digits than its factorization.

64157124123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719794 (or 6719791 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

Adding to 64157124123 its reverse (32142175146), we get a palindrome (96299299269).

The spelling of 64157124123 in words is "sixty-four billion, one hundred fifty-seven million, one hundred twenty-four thousand, one hundred twenty-three".