1023375575656 has 32 divisors (see below), whose sum is σ = 2243946450240. Its totient is φ = 428389774848.

The previous prime is 1023375575647. The next prime is 1023375575711. The reversal of 1023375575656 is 6565755733201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1023375575597 and 1023375575606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212492521 + ... + 212497336.

It is an arithmetic number, because the mean of its divisors is an integer number (70123326570).

Almost surely, 2^{1023375575656} is an apocalyptic number.

It is an amenable number.

1023375575656 is an abundant number, since it is smaller than the sum of its proper divisors (1220570874584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023375575656 is a wasteful number, since it uses less digits than its factorization.

1023375575656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424989913 (or 424989909 counting only the distinct ones).

The product of its (nonzero) digits is 19845000, while the sum is 55.

The spelling of 1023375575656 in words is "one trillion, twenty-three billion, three hundred seventy-five million, five hundred seventy-five thousand, six hundred fifty-six".