70250121012661 has 32 divisors (see below), whose sum is σ = 73988221402368. Its totient is φ = 66571989496320.

The previous prime is 70250121012611. The next prime is 70250121012703. The reversal of 70250121012661 is 16621012105207.

70250121012661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 70250121012661 - 2¹¹ = 70250121010613 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 (70250121012611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2260211641 + ... + 2260242721.

It is an arithmetic number, because the mean of its divisors is an integer number (2312131918824).

Almost surely, 2^{70250121012661} is an apocalyptic number.

It is an amenable number.

70250121012661 is a deficient number, since it is larger than the sum of its proper divisors (3738100389707).

70250121012661 is a wasteful number, since it uses less digits than its factorization.

70250121012661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33261.

The product of its (nonzero) digits is 10080, while the sum is 34.

Adding to 70250121012661 its reverse (16621012105207), we get a palindrome (86871133117868).

The spelling of 70250121012661 in words is "seventy trillion, two hundred fifty billion, one hundred twenty-one million, twelve thousand, six hundred sixty-one".