89551650816 has 360 divisors, whose sum is σ = 272512391424. Its totient is φ = 29382082560.

The previous prime is 89551650803. The next prime is 89551650823. The reversal of 89551650816 is 61805615598.

89551650816 is a `hidden beast` number, since 8 + 9 + 551 + 6 + 5 + 0 + 81 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330448761 + ... + 330449031.

Almost surely, 2^89551650816 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 89551650816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136256195712).

89551650816 is an abundant number, since it is smaller than the sum of its proper divisors (182960740608).

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

89551650816 is an frugal number, since it uses more digits than its factorization.

89551650816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 54.

The spelling of 89551650816 in words is "eighty-nine billion, five hundred fifty-one million, six hundred fifty thousand, eight hundred sixteen".