287220552160 has 24 divisors (see below), whose sum is σ = 678558554856. Its totient is φ = 114888220800.

The previous prime is 287220552137. The next prime is 287220552181. The reversal of 287220552160 is 61255022782.

It is a super-3 number, since 3×287220552160³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897564066 + ... + 897564385.

It is an arithmetic number, because the mean of its divisors is an integer number (28273273119).

Almost surely, 2^287220552160 is an apocalyptic number.

287220552160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

287220552160 is an abundant number, since it is smaller than the sum of its proper divisors (391338002696).

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

287220552160 is a wasteful number, since it uses less digits than its factorization.

287220552160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795128466 (or 1795128458 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The spelling of 287220552160 in words is "two hundred eighty-seven billion, two hundred twenty million, five hundred fifty-two thousand, one hundred sixty".