70531520655 has 16 divisors (see below), whose sum is σ = 115900445664. Its totient is φ = 36600140160.

The previous prime is 70531520627. The next prime is 70531520707. The reversal of 70531520655 is 55602513507.

It is not a de Polignac number, because 70531520655 - 2¹³ = 70531512463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63541356 + ... + 63542465.

It is an arithmetic number, because the mean of its divisors is an integer number (7243777854).

Almost surely, 2^70531520655 is an apocalyptic number.

70531520655 is a deficient number, since it is larger than the sum of its proper divisors (45368925009).

70531520655 is a wasteful number, since it uses less digits than its factorization.

70531520655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127083866.

The product of its (nonzero) digits is 157500, while the sum is 39.

The spelling of 70531520655 in words is "seventy billion, five hundred thirty-one million, five hundred twenty thousand, six hundred fifty-five".