70661568 has 28 divisors (see below), whose sum is σ = 186959240. Its totient is φ = 23553792.

The previous prime is 70661557. The next prime is 70661581. The reversal of 70661568 is 86516607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183823 + ... + 184206.

Almost surely, 2^70661568 is an apocalyptic number.

It is an amenable number.

70661568 is an abundant number, since it is smaller than the sum of its proper divisors (116297672).

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

70661568 is a wasteful number, since it uses less digits than its factorization.

70661568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368044 (or 368034 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 70661568 is about 8406.0435402156. The cubic root of 70661568 is about 413.4227994566.

The spelling of 70661568 in words is "seventy million, six hundred sixty-one thousand, five hundred sixty-eight".