70146056561 has 8 divisors (see below), whose sum is σ = 80239218240. Its totient is φ = 60070969008.

The previous prime is 70146056549. The next prime is 70146056597. The reversal of 70146056561 is 16565064107.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70146056561 is a prime.

It is a super-2 number, since 2×70146056561² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70146056501) 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, 4510211 + ... + 4525736.

It is an arithmetic number, because the mean of its divisors is an integer number (10029902280).

Almost surely, 2^70146056561 is an apocalyptic number.

It is an amenable number.

70146056561 is a deficient number, since it is larger than the sum of its proper divisors (10093161679).

70146056561 is a wasteful number, since it uses less digits than its factorization.

70146056561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9037063.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 70146056561 in words is "seventy billion, one hundred forty-six million, fifty-six thousand, five hundred sixty-one".