70661652 has 12 divisors (see below), whose sum is σ = 164877216. Its totient is φ = 23553880.

The previous prime is 70661651. The next prime is 70661659. The reversal of 70661652 is 25616607.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70661651) by changing a digit.

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, 2944224 + ... + 2944247.

It is an arithmetic number, because the mean of its divisors is an integer number (13739768).

Almost surely, 2^70661652 is an apocalyptic number.

It is an amenable number.

70661652 is an abundant number, since it is smaller than the sum of its proper divisors (94215564).

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

70661652 is a wasteful number, since it uses less digits than its factorization.

70661652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888478 (or 5888476 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 70661652 is about 8406.0485366193. The cubic root of 70661652 is about 413.4229632774.

The spelling of 70661652 in words is "seventy million, six hundred sixty-one thousand, six hundred fifty-two".