66898048 has 64 divisors (see below), whose sum is σ = 153489600. Its totient is φ = 28449792.

The previous prime is 66898001. The next prime is 66898081. The reversal of 66898048 is 84089866.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 66897992 and 66898010.

It is a congruent number.

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, 176323 + ... + 176701.

It is an arithmetic number, because the mean of its divisors is an integer number (2398275).

Almost surely, 2^66898048 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 66898048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76744800).

66898048 is an abundant number, since it is smaller than the sum of its proper divisors (86591552).

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

66898048 is a wasteful number, since it uses less digits than its factorization.

66898048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 66898048 is about 8179.1226913404. The cubic root of 66898048 is about 405.9486940434.

The spelling of 66898048 in words is "sixty-six million, eight hundred ninety-eight thousand, forty-eight".