867055428661560 has 128 divisors (see below), whose sum is σ = 2723524162490880. Its totient is φ = 220407145215488.

The previous prime is 867055428661553. The next prime is 867055428661577. The reversal of 867055428661560 is 65166824550768.

It is a Harshad number since it is a multiple of its sum of digits (69).

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, 535284354 + ... + 536901713.

It is an arithmetic number, because the mean of its divisors is an integer number (21277532519460).

Almost surely, 2^{867055428661560} is an apocalyptic number.

It is an amenable number.

867055428661560 is an abundant number, since it is smaller than the sum of its proper divisors (1856468733829320).

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

867055428661560 is a wasteful number, since it uses less digits than its factorization.

867055428661560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072186397 (or 1072186393 counting only the distinct ones).

The product of its (nonzero) digits is 580608000, while the sum is 69.

The spelling of 867055428661560 in words is "eight hundred sixty-seven trillion, fifty-five billion, four hundred twenty-eight million, six hundred sixty-one thousand, five hundred sixty".