123605036564 has 96 divisors (see below), whose sum is σ = 232355020800. Its totient is φ = 57444266880.

The previous prime is 123605036509. The next prime is 123605036573. The reversal of 123605036564 is 465630506321.

It is a congruent number.

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, 54474422 + ... + 54476690.

It is an arithmetic number, because the mean of its divisors is an integer number (2420364800).

Almost surely, 2^123605036564 is an apocalyptic number.

It is an amenable number.

123605036564 is a deficient number, since it is larger than the sum of its proper divisors (108749984236).

123605036564 is a wasteful number, since it uses less digits than its factorization.

123605036564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533 (or 2531 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 123605036564 in words is "one hundred twenty-three billion, six hundred five million, thirty-six thousand, five hundred sixty-four".