70623366640 has 40 divisors (see below), whose sum is σ = 164286056448. Its totient is φ = 28234425600.

The previous prime is 70623366631. The next prime is 70623366661. The reversal of 70623366640 is 4666332607.

It is a tau number, because it is divible by the number of its divisors (40).

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, 80112 + ... + 384271.

Almost surely, 2^70623366640 is an apocalyptic number.

It is an amenable number.

70623366640 is an abundant number, since it is smaller than the sum of its proper divisors (93662689808).

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

70623366640 is a wasteful number, since it uses less digits than its factorization.

70623366640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466297 (or 466291 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 43.

The spelling of 70623366640 in words is "seventy billion, six hundred twenty-three million, three hundred sixty-six thousand, six hundred forty".