11621868160025 has 24 divisors (see below), whose sum is σ = 14964834756984. Its totient is φ = 8946469785600.

The previous prime is 11621868159977. The next prime is 11621868160057. The reversal of 11621868160025 is 52006186812611.

It can be written as a sum of positive squares in 12 ways, for example, as 2695779785689 + 8926088374336 = 1641883^2 + 2987656^2 .

It is not a de Polignac number, because 11621868160025 - 2¹⁸ = 11621867897881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77585504 + ... + 77735153.

It is an arithmetic number, because the mean of its divisors is an integer number (623534781541).

Almost surely, 2^{11621868160025} is an apocalyptic number.

It is an amenable number.

11621868160025 is a deficient number, since it is larger than the sum of its proper divisors (3342966596959).

11621868160025 is a wasteful number, since it uses less digits than its factorization.

11621868160025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155320781 (or 155320776 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 11621868160025 in words is "eleven trillion, six hundred twenty-one billion, eight hundred sixty-eight million, one hundred sixty thousand, twenty-five".