87450551578656 has 192 divisors, whose sum is σ = 291821837045760. Its totient is φ = 24958443444480.

The previous prime is 87450551578627. The next prime is 87450551578661. The reversal of 87450551578656 is 65687515505478.

It is a happy number.

87450551578656 is a `hidden beast` number, since 8 + 7 + 4 + 5 + 0 + 551 + 5 + 7 + 8 + 65 + 6 = 666.

It is a super-2 number, since 2×87450551578656² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 2426286 + ... + 13445741.

It is an arithmetic number, because the mean of its divisors is an integer number (1519905401280).

Almost surely, 2^{87450551578656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87450551578656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145910918522880).

87450551578656 is an abundant number, since it is smaller than the sum of its proper divisors (204371285467104).

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

87450551578656 is a wasteful number, since it uses less digits than its factorization.

87450551578656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15872964 (or 15872950 counting only the distinct ones).

The product of its (nonzero) digits is 1411200000, while the sum is 72.

The spelling of 87450551578656 in words is "eighty-seven trillion, four hundred fifty billion, five hundred fifty-one million, five hundred seventy-eight thousand, six hundred fifty-six".