70515601221 has 8 divisors (see below), whose sum is σ = 101253171040. Its totient is φ = 43394216112.

The previous prime is 70515601199. The next prime is 70515601223. The reversal of 70515601221 is 12210651507.

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

It is not a de Polignac number, because 70515601221 - 2⁶ = 70515601157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70515601223) 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, 904046131 + ... + 904046208.

It is an arithmetic number, because the mean of its divisors is an integer number (12656646380).

Almost surely, 2^70515601221 is an apocalyptic number.

It is an amenable number.

70515601221 is a deficient number, since it is larger than the sum of its proper divisors (30737569819).

70515601221 is a wasteful number, since it uses less digits than its factorization.

70515601221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808092355.

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 70515601221 in words is "seventy billion, five hundred fifteen million, six hundred one thousand, two hundred twenty-one".