70055563821 has 8 divisors (see below), whose sum is σ = 93425757600. Its totient is φ = 46694539632.

The previous prime is 70055563811. The next prime is 70055563843. The reversal of 70055563821 is 12836555007.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70055563821 - 2⁶ = 70055563757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70055563801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2274550 + ... + 2305143.

It is an arithmetic number, because the mean of its divisors is an integer number (11678219700).

Almost surely, 2^70055563821 is an apocalyptic number.

It is an amenable number.

70055563821 is a deficient number, since it is larger than the sum of its proper divisors (23370193779).

70055563821 is a wasteful number, since it uses less digits than its factorization.

70055563821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584795.

The product of its (nonzero) digits is 252000, while the sum is 42.

The spelling of 70055563821 in words is "seventy billion, fifty-five million, five hundred sixty-three thousand, eight hundred twenty-one".