70020255775 has 12 divisors (see below), whose sum is σ = 91932477552. Its totient is φ = 52721133440.

The previous prime is 70020255769. The next prime is 70020255803. The reversal of 70020255775 is 57755202007.

It is a happy number.

It is not a de Polignac number, because 70020255775 - 2¹¹ = 70020253727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82376347 + ... + 82377196.

It is an arithmetic number, because the mean of its divisors is an integer number (7661039796).

Almost surely, 2^70020255775 is an apocalyptic number.

70020255775 is a deficient number, since it is larger than the sum of its proper divisors (21912221777).

70020255775 is a wasteful number, since it uses less digits than its factorization.

70020255775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164753570 (or 164753565 counting only the distinct ones).

The product of its (nonzero) digits is 171500, while the sum is 40.

The spelling of 70020255775 in words is "seventy billion, twenty million, two hundred fifty-five thousand, seven hundred seventy-five".