11211606625 has 16 divisors (see below), whose sum is σ = 14474575440. Its totient is φ = 8659996800.

The previous prime is 11211606589. The next prime is 11211606713. The reversal of 11211606625 is 52660611211.

It can be written as a sum of positive squares in 8 ways, for example, as 1014040336 + 10197566289 = 31844^2 + 100983^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11211606625 is a prime.

It is a super-2 number, since 2×11211606625² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542804 + ... + 1550053.

It is an arithmetic number, because the mean of its divisors is an integer number (904660965).

Almost surely, 2^11211606625 is an apocalyptic number.

It is an amenable number.

11211606625 is a deficient number, since it is larger than the sum of its proper divisors (3262968815).

11211606625 is an equidigital number, since it uses as much as digits as its factorization.

11211606625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092901 (or 3092891 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 11211606625 in words is "eleven billion, two hundred eleven million, six hundred six thousand, six hundred twenty-five".