60644111638 has 32 divisors (see below), whose sum is σ = 103980298752. Its totient is φ = 26257545600.

The previous prime is 60644111623. The next prime is 60644111699. The reversal of 60644111638 is 83611144606.

It is a self number, because there is not a number n which added to its sum of digits gives 60644111638.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126706 + ... + 370597.

It is an arithmetic number, because the mean of its divisors is an integer number (3249384336).

Almost surely, 2^60644111638 is an apocalyptic number.

60644111638 is a deficient number, since it is larger than the sum of its proper divisors (43336187114).

60644111638 is a wasteful number, since it uses less digits than its factorization.

60644111638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497580.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 60644111638 in words is "sixty billion, six hundred forty-four million, one hundred eleven thousand, six hundred thirty-eight".